5.90 • Two blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes (Fig. P5.90). (a) Which way will the system move when the blocks are released from rest? (b) What is the acceleration of the blocks? (c) What is the tension in the cord?

5.90 • Two blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes (Fig. P5.90). (a) Which way will the system move when the blocks are released from rest? (b) What is the acceleration of the blocks? (c) What is the tension in the cord?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 67PQ: Problems 67. 70. 71. and 72 are grouped. A A block of mass M is placed on a frictionless plane. The...

See similar textbooks

Related questions

Q: A 1,982-kg car starts from rest at the top of a driveway 6.74 m long that is sloped at an angle of…

A: Given: initial velocity, u = 0 m/s mass, m = 1982 kg length, s = 6.74 m Angle, θ = 30 degree…

Q: A nonzero net force acts on an object. Is it possible for any of the following quantities to be…

A: (a) If a nonzero force acts on the object then an acceleration acting on the object according to the…

Q: A 2.86-kg particle is subject to a net force that varies with position as shown in the figure. The…

A: Given, Mass of the particle =2.86 kg It is given that the particle starts from rest at x =0 A figure…

Q: A 2.0-N rock slides on a frictionless inclined plane. Which one of the following statements is true…

A: we know frictional force f =μN where μ= coefficient of friction N = weight of block given μ=0.30 f…

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A 5 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

Q: A snowboarder with a mass of 98kg is initially stationary on a hilltop, then slides down on the…

A: We have snowboarder with mass M=98 kg who is sliding down a hill of incline 38o which has…

Q: A snowboarder with a mass of 98kg is initially stationary on a hilltop, then slides down on the…

Q: Beginning at time t = 0, a student exerts a horizontal force on a box of mass 30 kg, causing it to…

A: Given, mass of block = 30 kg initial speed = 1.2 m/s coefficient of friction = 0.20 time for…

Q: In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but…

A: Given , terminal velocity u=56 msmass m=85 kgForce F=1.2x105 N

Q: Estimate the effective value of g on the top of a mountain which is twice as tall as Mt. Everest,…

Q: After one month of taking a literature class, a first-year Bard student decides to dispose of all…

Q: 60×104 kg. (a) What force ( in N) must each engine exert backward on the track to accelerate…

A: Given:- The mass of the engine me = 8.00×104 kg The average mass of the cars is mc = 5.60 x 104 kg…

Q: In an amusement park water slide, people slide down an essentially frictionless tube. The top of the…

A: Given: Height difference between top and exit of the slide, H=3 mHeight of the exist above water…

Q: A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N.…

Q: 2. After one month of taking a literature class, a first-year Bard student decides to dispose of all…

Q: *26. ao Under the influence of its drive force, a snowmobile is moving at a constant velocity along…

Q: If a 1.6 kg object is initially at rest on a frictionless, horizontal surface and subjected to a…

A: Given data: Mass (m) = 1.6 kg Initial velocity = 0 m/s Force (F) = 12.2 N Distance (d) = 3.99 m…

Q: A body is falling freely under the action of gravity alone in vacuum. Which of the following…

Q: An applied force of 44.6 N directed at an angle of -15.3 degrees with respect to the +x direction…

A: Given: Applied Force F = 44.6 N angle made with x-axis θ = -15.3° mass of the block , m =2.89 kg…

Q: At what initial speed should a box of mass m be thrown parallel to the surface of the inclined plane…

Q: 5.23 . CP CALC A 2.00-kg box is moving to the right with speed 9.00 m/s on a horizontal,…

A: The mass is moving with some kinetic energy and when it stops the final kinetic energy is 0. This…

Q: A 6.0-kg block initially at rest is pulled to the right along a horizontal surface by a constant…

A: A. The magnitude of frictional force is

Q: A golf club strikes a 0.062-kg golf ball in order to launch it from the tee. For simplicity, assume…

A: Suppose a golf club hits a ball having mass m with the force F and the golf club is in contact with…

Q: 65-kg ice skater coasts with no effort for 75 m until she stops. If the coefficient of kinetic…

A: given coefficient of kinetic friction = μ = 0.1 mass = 65 kg distance covered s = 75 m final…

Q: _5. A 0.3 kg ball is released in an inclined plane as shown in the figure below. In order for it to…

A: According to bartleby's policy, I can answer only 1 question at a time,. Given Data : The mass of…

Q: 5.23 CP CALC A 2.00-kg box is moving to the right with speed 9.00 m/s on a horizontal, frictionless…

A: (given) Mass (m) of the box = 2 kg Speed of the box = 9 m/s Force F(t) = 6…

Q: 53. Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force…

Q: Problem 7: A block of mass m = 59 kg slides along a horizontal surface. The coefficient of friction…

A: In the given problem we have to find the frictional force acting on the box. First we will draw the…

Q: A 6 kg block initially at rest is pulled to the right along a rough surface ( cl) by a constant…

A: Component of vector along x axis = A cosθ Component of vector along y axis = A sinθ

Q: A 0.1 kg ball is launched from a vertical cannon, 0.7 m high and 0.05 m wide. The cannon exerts a…

A: Mass of the ball is m = 0.1 kg Force exerted on the ball is F = 146 N Time period for which the…

Q: Tom reached a speed of 29 m/s in the downhill skiing competition. Suppose he left the slope at that…

A: Given: The initial speed of tom is vi=29 ms. The final speed of the tom is vf=vi2. The coefficient…

Q: mysterious force acts on all particles along a particular line and always points towards a…

Q: A freight train consists of two 8.00×105-kg engines and 45 cars with average masses of 5.50×105kg.…

A: given -

Q: In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but…

A: Height (h) = 370 m Terminal speed (v) = 59 m/s Mass (m) = 67 kg Force (F) = 1.2×105 N

Q: 7. A skier whose mass is 70 kg, takes off from ski jump with a velocity of 50 m/s at an unknown…

Q: If someone can vertically jump a height h on earth, with g = 9.8 m/s2, how high can they jump on…

A: we need to put some effort to jump up i.e., to move up against gravitational force. what ever the…

Q: Situation 03. A skier is on a 25 slope and his mass is 80kg. If his constant velocity and the…

Q: Suppose a toy car experiences two horizontal forces: A time-dependent force from its motor of F =…

A: Given that:Fx=2.0 e-0.5tNμ=0.1at t=0, v=0 (starts from rest)

Q: 5.00 kg block is thrown up an inclined plane with an initial speed of 8.00 m / s which stops after…

Q: A top WNBA player can jump about .7 meters off the ground. If her mass is 50 kg, what force must she…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: On the top of an 80 m tall building, there is a spring of 100 N/M were located 6.22 m away from the…

A: When spring is compressed by x then potential energy stored in the spring is given as U=12kx2Where x…

Q: A 1.58 kg box is released from rest from the top of a frictionless ramp of height 1.20 m. B (a) How…

A: (a)Mass m of the box=1.58kgHeight h=1.2mg, the acceleration due to gravity=9.8m/s2Potential energy…

Q: Beginning at time t = 0, a student exerts a horizontal force on a box of mass 30 kg, causing it to…

A: Given, initial velocity =1.2 m/s mass of block = 30 kg Coefficient of kinetic friction = 0.20…

Q: The package of mass M = 5 kg is released from rest at A which is h = 3 m above the ground. It slides…

A: Given: The mass of the package is 5 kg. The height is 3 m. The angle of inclination is 30 degrees.…

Q: 200N 100N 3

Q: Hennessey Venom F5, one of the world's fastest car today is able to reach top speed at 480 kph…

Q: A skier starts at rest at the top of a large hemispherical hill (Fig. P7.63). Neglecting friction,…

A: Given: The skier starts at rest at the top of a large hemispherical hill. We need to show that, the…

Q: Can we get off a frictionless horizontal surface by jumping?

A: Given: Jumping

Concept explainers

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.

Question

show complete solution.

5.90 • Two blocks connected by a cord passing over a small,
frictionless pulley rest on frictionless planes (Fig. P5.90). (a) Which
way will the system move when the blocks are released from rest?
(b) What is the acceleration of the blocks? (c) What is the tension
in the cord?
Figure P5.90
100 kg
50 kg
30.0°
53.1°

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

In the very Dutch sport of Fierljeppen, athletes run up to a long pole and then use it to vault across a canal. At the very top of his arc, a 55 kg vaulter is moving at 2.5 m/s and is 5.1 m from the bottom end of the pole. What vertical force does the pole exert on the vaulter?
Figure P5.47 shows a photo of a swing ride at an amusement park. The structure consists of a horizontal, rotating, circular platform of diameter D from which seats of mass m are suspended at the end of massless chains of length d. When the system rotates at constant speed, the chains swing outward and make an angle with the vertical. Consider such a ride with the following parameters: D = 8.00 m, d = 2.50 m, m = 10.0 kg, and = 28.0. (a) What is the speed of each seat? (b) Draw a diagram of forces acting on a 40.0-kg child riding in a seat and (c) find the tension in the chain. Figure P5.47
Problems 67. 70. 71. and 72 are grouped. A A block of mass M is placed on a frictionless plane. The plane is inclined at an angle , and the block is a distance d from its end. Of course, we would expect the block to slip down the plane. Suppose we revolve the incline around the vertical axis shown in Figure P6.67 instead. At what period of revolution will the block remain in place on the plane? FIGURE P6.67 Problems 67. 71. and 72.
A skier starts at rest at the top of a large hemispherical hill (Fig. P7.63). Neglecting friction, show that the skier will leave the hill and become airborne at a distance h = R/3 below the top of the hill. Hint: At this point, the normal force goes to zero. Figure P7.63
A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a second block with mass m2 that sits on a ledge. The second block is also connected to a third block with mass m3 by a second rope that hangs over a second ideal pulley as shown in Figure P5.47. If the friction between the ledge and the second block is negligible, m1 = 3.00 kg, m2 = 5.00 kg, and m3 = 8.00 kg, find the magnitude of the tension in each rope and the acceleration of each block. FIGURE P5.47
A really old 1500kg car without ABS brakes is traveling on a flat, horizontal road ay 75mph when the rivers suddenly slams on the brakes. The coefficient of sliding friction between the car tires and the road is 0.35. What distance does the car travel before coming to a complete stop!
A 200-g hockey puck is launched up a ramp that is inclined at a 30° angle above the horizontal. The coefficients of static and kinetic friction between the puck and the ramp are µs = 0.40 and µk = 0.30, respectively, and the puck's initial velocity at the base is 3.8 m/s parallel to the sloping surface of the ramp. What speed does the puck have when it slides back down to its starting point?
A freight train consists of two 8.00×105-kg engines and 45 cars with average masses of 5.50×105kg. (a) What force must each engine exert backward on the track to accelerate the train at a rate of 5.00×10−2m/s2 if the force of friction is 7.50×105 N, assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems. (b) What is the magnitude of the force in the coupling between the 37th and 38th cars (this is the force each exerts on the other), assuming all cars have the same mass and that friction is evenly distributed among all of the cars and engines?
A freight train consists of two 8.00×104 kg engines and 45 cars with average masses of 5.60×104 kg. (a) What force ( in N) must each engine exert backward on the track to accelerate the train at a rate of 4.00×10−2 m/s2 if the force of friction is 6.20×105 N, assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems. answer= N (b) What is the force ( in N) in the coupling between the 37th and 38th cars (this is the force each exerts on the other), assuming all cars have the same mass and that friction is evenly distributed among all of the cars and engines? answer = N
Dr. Jekyll (m = 70kg) is riding a skateboard when he realizes the cranberry juice he’s drinking is sweetened with artificial sweetener and turns into Mr. Hyde (m = 155kg). If Dr. Jekyll was initially moving at 6.5m/s, what is Mr. Hyde’s speed? (assume no external forces act)
A high-diver of mass 70 kg jumps off a board 20 m above the water. If, 1.5 s after entering the water his downward motion is stopped, what average net force exerted on the diver? Choose A. 800 N B. 924 N C. 653 N D. No answer is correct.
A 1100-kg car coasts on a horizontal roadwith a speed of 19 m>s. After crossing an unpaved, sandy stretchof road 32 m long, its speed decreases to 12 m>s. (a) Was the network done on the car positive, negative, or zero? Explain. (b) Findthe magnitude of the average net force on the car in the sandysection.