(a) the reaction force(b) the frictional force DOM(c) the acceleration of the box[Answer: (a) 82.48 N (b) 24.74 N (C) 4.00 m s ]9. An empty elevator has a weight of 7000 N. The elevator is moving upward at8 ms". It slows to a stop with a constant acceleration in 5 s. Calculate:(a) the acceleration of the elevator.(b) the tension in the supporting cable of the elevator.[Answer: (a) -1.60 m s (b) 5858.31 N]10.babnr eboldea arllo noilalsA box, A, of mass 15 kg rests on a smooth horizontal floor beside a box, B,of mass 8 kg as shown in the figure above. If the box of 15 kg is pushed with30 N force at 30° above the horizontal plane, calculate:(a) the acceleration of the boxes.(b) the contact force between the boxes.[Answer: (a) 1.13 ms (b) 9.04 N]11.Two blocks connected by a light string are pulled towards the right as shownin the figure. Assume the floor is frictionless. Given mA = 3 kg, m = 2 kg andthe acceleration of the system is 2 m s, calculate:(a) the tension, T, in string between block A and block B.(b) the pulling force, F.[Answer: (a) 6 N (b) 10 N]mal onitootal12. Calculate the acceleration for an Atwood's machine with masses 3 kg and8 kg.analy baallooi nw[Answer: 4.46 m s]

9. Here we are dealing with an accelerating elevator. Due to the acceleration of the elevator, it…

9 An empty elevator has a weight of 7000 N. The elevator is moving upward at 8ms". It slows to a stop with a constant acceleration in 5 s. Calculate: (a) the acceleration of the elevator. (b) the tension in the supporting cable of the elevator. [Answer: (a) -1.60 m s (b) 5858.31 N]

9 An empty elevator has a weight of 7000 N. The elevator is moving upward at 8ms". It slows to a stop with a constant acceleration in 5 s. Calculate: (a) the acceleration of the elevator. (b) the tension in the supporting cable of the elevator. [Answer: (a) -1.60 m s (b) 5858.31 N]

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 62P: Consider Figure 5.28. The driver attempts to get the car out of the mud by exerting a perpendicular...

See similar textbooks

Related questions

Q: 4. A mass m is on a frictionless incline that makes an angle 0 with the horizontal. Let m = 25.0 kg…

A: Given,mass of the block, m = 25.0 kgθ = 30.0°

Q: 3. In Fig. 12 and x= 53.1°. The coefficient of kinetic friction between the block and the incline is…

Q: 9. A boy weighing 160 lbs lies in a hammock. The rope at the persons head makes an angle of 40 with…

Q: Can you please answer this question and show the steps

A: Just before the box starts to slide, the static friction equals the tangent of the angle at which…

Q: 5.24 . CP CALC A 5.00-kg crate is suspended from the end of a short vertical rope of negligible…

A: The expression for displacement is, y=2.8t+0.61t3 The acceleration can be given as,…

Q: Am, = 1.85-kg aluminum block and a m, = 7.45-kg copper block are connected by a light string over a…

Q: 12. The apparent weight of a passenger in an elevator is greater thanhis true weight. Which one of…

A: In case of motion in accelerating frame, a pseudo force is added to equation of motion to remain…

Q: 72. A fisherman is fishing from a bridge and is using a “45-N test line." In other words, the line…

Q: 16. Calculate the Tensions, and Accelerations of blocks 1 and 2 if ml= 5 kg and m2 = 6 kg ceiling 1…

A: Ans:- Image-1

Q: QUESTION 25 A worker moves a 20-kg crate on a level surface by pulling on the free end of a light,…

Q: 10) Two masses mı = 3kg, m2 = 5kg are connected by a very light string. The mass hanging off the…

A: m1=3 kgm2=5 kgF=100 Nμ=0.3θ=40

Q: An object of mass = 0.35 kg is suspended from the ceiling of an accelerating car. If the car has an…

A: Given: The mass of the object is m=0.35 kg. The acceleration of the car is a=2.5 m/s2. The angle…

Q: 3. An object is suspended by two ropes from a ceiling and a wall as shown. What is the tension, T,…

Q: 8) A baby of mass m=10. kg is having too much fun jumping up in a baby jumper held by two bungee…

A: mass of baby (m) = 10 kg θ = 30oacceleration (a) = 3 ms2 (in upwards direction)

Q: 42. (II) A box is given a push so that it slides across the floor. How far will it go, given that…

A: Data Given , Co-efficient of kinetic friction ( μ ) = 0.15 Initial speed ( u ) = 3.5 m/s Final…

Q: 2) A 100 N signboard is hanged by two cables. Determine the tension given the following angles:…

A: Given: W=100 [N] There are two cables let the left cable be T1 and the right cable be T2 Then there…

Q: 2. A gong is suspended by two ropes. One makes an angle of 25° with the vertical and is under a…

Q: 12) If a person weighs 882 N on the surface of the earth, at what altitude above the earth's surface…

Q: 30. A ship is towed into a port by two tugs, each of which is pulling the ship by a steel cable. The…

Q: 7. The masses of the red and green boxes are 7.82 kg and 2.77 kg, respectively. If the red box is…

Q: 2. What force is needed to pull a 75 N box up a 35° incline at a rate of 1.5 m/s, if the coefficient…

A: This question is based on law of motion and friction.

Q: 2. An automobile travelling at 50 mi/h on a level road is stopped by sliding wheels. If the…

A: Initial speed of car, u = 50 mi/h = 22.4 m/s Acceleration, a = -g = -9.8 m/s2 Kinetic friction, µ =…

Q: 2. In Fig. P5.68 m, = 20.0 kg and a = 53.1°. The coefficient of kinetic friction between the block…

Q: 7.0 kg block is at rest on a ramp with an incline of 25 o . What is the magnitude of the component…

Q: 5. A 200kg box is laid down to a rough flat surface whose coefficient of friction is 0.39. Determine…

A: Given data: The mass of the box, m=200 kg. The coefficient of friction of the surface, μ=0.39. The…

Q: 10. Two blocks, each of mass m= 3.50 kg, are hung from the ceiling of an elevator as in the Figure…

Q: The 400 kg mine car is hoisted up the incline using the cable and motor M. For a short time, the…

A: Mass, m = 400 kg Force, F = 3200 t2 Time, t = 2 s

Q: 10. Determine the direction and acceleration of the 2 kg mass below in the horizontal plane. 30° 50…

A: Given: The mass of the object is 2 kg. The free-body diagram is given below.

Q: 2. While driving down a road in your car that has a mass of 1300 kg, you notice that your speed is…

A: Given that:- Mass of car=1300kg

Q: 18. An object with mass M1= 8 Kg rests on a frictionless horizontal table and is connected by a…

A: 18. Given: The mass of the first block 8 kg. The mass of the second block is 12 kg.

Q: A man inside the elevator stands in a weighing scale, mass = 100 kg. What will be its apparent…

A: When lift is moving to upward with acceleration a, acceleration due to gravity g will act downward…

Q: 62) Equilibrium: A 10.0-kg picture is held in place by two wires, the first one hanging at 50.0° to…

A: Given, Mass=10kg

Q: 2. A body weighing 980N is moving with a constant speed of 5 m/s on a horizontal surface. The…

Q: Only two forces act on an object (mass=4.19 kg), as the drawing. Find (a) the magnitude and (b) the…

A: The resultant of the two forces is given by parallelogram law, F=402+602+2×40×60×cos(45o)=92.7 N The…

Q: 9. Three identical blocks of masses m =2 kg are drawn by a force F = 10.2 N with an acceleration of…

Q: A magnet of mass 5.01 kg is suspended from the ceiling by a cord as shown. A large magnet is…

A: Given: The mass of the magnet is 5.01 kg. The magnetic force is 187.4 N.

Q: 9. A lawn roller with a mass of 60 kg is being pulled with a force of 350 N. If the handle of the…

A: We have a mass of m=60 kg on which there is a force applied of magnitude F=350 N at an angle of 40o…

Q: An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an…

Q: 1. Calculate the force of the rope attached at 150-lb. (lb) а. 120 b. None of the above с. 100 d.…

A: Mass of smaller block,m= 100 LB mass of heavier block,M= 150 LB

Q: 7.00 kg 3.00 kg 7.00 kg What is the force by tension above the single 7kg bucket hanging on the…

A: Given data: The mass of left side is mL=7 kg. The total mass of right side is mR=3 kg+7 kg=10 kg.

Q: 20. A certain object is in equilibrium. Which one of the following statements is not true? (a) The…

A: A certain object is in equilibrium

Q: 74. A helicopter flies over the arctic ice pack at a constant altitude, tow- ing an airborne 129-kg…

A: The tension has two components is Vertical and Horizontal

Q: 17. Compute the acceleration of body B and the tension in the cord attached to it. 400 lb 300 lb…

A: Given: Mass of the block A, mA = 300 lb. Mass of the block B, mB = 400 lb. Coefficient of friction,…

Q: 11. Only two forces act on an object (mass = 3.00 kg), as in the drawing. Find the magnitude and…

A: Given,

Q: 10. Two blocks, each of mass m 3.50 kg, are hung from the ceiling of an elevator as in the Figure…

A: mass of each block (m) = 3.50 kg Upwards acceleration (a) of elevator = 1.60 ms2

Q: 9. An airplane is traveling at 180 m/s and performs a vertical loop in 23.0 s. Determine the force…

A: Given : v=180m/s, T=23 s Angular velocity: ω=2πT= 0.273 rad/sec v=ωR R=vω=1800.273=659.34 m At the…

Q: Need help with both of these questions

Q: 94. As shown below, if F = 60.0 N and M =4.00 kg, what is the magnitude of the acceleration of the…

Q: Question 21 If gravity pulls you down toward the center of Earth with a force of 500 N, how much…

A: Given: Normal Force = 500 N

Q: A force F = 5 N acts on an object of mass 2 kg on an inclined plane with an angle of inclination of…

A: Given data: Force (F) = 5 N Mass of object (m) = 2 kg Angle (θ) = 37° Coefficient of kinetic…

Question

100%

(a) the reaction force
(b) the frictional force DOM
(c) the acceleration of the box
[Answer: (a) 82.48 N (b) 24.74 N (C) 4.00 m s ]
9. An empty elevator has a weight of 7000 N. The elevator is moving upward at
8 ms". It slows to a stop with a constant acceleration in 5 s. Calculate:
(a) the acceleration of the elevator.
(b) the tension in the supporting cable of the elevator.
[Answer: (a) -1.60 m s (b) 5858.31 N]
10.
bab
nr ebold
ea arllo noilals
A box, A, of mass 15 kg rests on a smooth horizontal floor beside a box, B,
of mass 8 kg as shown in the figure above. If the box of 15 kg is pushed with
30 N force at 30° above the horizontal plane, calculate:
(a) the acceleration of the boxes.
(b) the contact force between the boxes.
[Answer: (a) 1.13 ms (b) 9.04 N]
11.
Two blocks connected by a light string are pulled towards the right as shown
in the figure. Assume the floor is frictionless. Given mA = 3 kg, m = 2 kg and
the acceleration of the system is 2 m s, calculate:
(a) the tension, T, in string between block A and block B.
(b) the pulling force, F.
[Answer: (a) 6 N (b) 10 N]
mal onitootal
12. Calculate the acceleration for an Atwood's machine with masses 3 kg and
8 kg.
analy baallooi nw
[Answer: 4.46 m s]

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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

A 3.00-kg object undergoes an acceleration given by a=(2.00i+5.00j)m/s2. Find (a) the resultant force acting on the object and (b) the magnitude of the resultant force.
The parachute on a race car of weight 8 820 N opens at theend of a quarter-mile run when the car is traveling at 35.0 m/s.What total retarding force must be supplied by the parachuteto stop the car in a distance of 1.00 x 103 m?
An inclined plane makes an angle of 30o with the horizontal. Neglecting friction forces, find the constant force, applied parallel to the plane, required to cause a 15-kg box to speed up, moving up the plane with acceleration 1.2 m/s2 and down the incline with acceleration 1.2 m /s2?
A box rests on a frozen pond, which serves as a frictionless horizontal surface. If a fisherman applies a horizontal force with magnitude 42.5 N to the box and produces an acceleration of magnitude 4.45 m/s/s, what is the mass of the box?
Paleontologists estimate that if a Tyrannosaurus rex had tripped and fallen, the ground would have exerted anormal force of approximately 260,000 N on its torso as it landed.Assuming the torso has a mass of 3800 kg, (a) find the magnitudeof the torso’s upward acceleration as it comes to rest. (For comparison, humans lose consciousness with an acceleration of about 7g.)(b) Assuming the torso of a T. rex is in free fall for a distance of 1.46m as it falls to the ground, how much time is required for the torsoto come to rest once it contacts the ground?
A person of weight 480 N stands on a scale in an elevator. What will the scale be reading when the elevator is decelerating downward at 1.00 m/s 2 ?
If the order of the barges of the preceding exercise is reversed so that the tugboat pulls the 3.00 × 103 -kg barge with a force of 20.0 × 103 N, what are the acceleration of the barges and the tension in the coupling cable?
What force, applied parallel to the plane, is necessary so that a 100 lb object will slide down the frictionless plane with an acceleration of8 ft/s2, if the plane makes an angle of 30 ̊with the horizontal?
What force in kgf will accelerate a mass of 50kg at the rate of 10 m/sec2 considering friction of 0.001 between the block and the surface with 30 degrees inclination?
The same force that gives the standard 1 kg mass an acceleration of 1.00 m/s^2 acts first on body A, producing an acceleration of 0.380 m /s^2 and then on body b producing an acceleration of 0.329m / s^2 Find the acceleration when a and b are attached and the same force is applied?
A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line will sustain a maximum force of 30.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed and (b) with an acceleration whose magnitude is 2.16 m/s2?
A jet airplane has an instantaneous acceleration of 1.99m /s^2 at an angle of 18.5^oabove the horizontal.Compute the horizontal and vertical components of force exerted on a 55.0kg passenger by the airplane seat?