Answered: Problem 2: What is the minimum work…

Problem 2: What is the minimum work needed to push a 950-kg car 810 m up along a 9.0o incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.25.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 76P: Calculate the power output needed for a 950-kg car to climb a 2.00 slope at a constant 30.0 m/s...

See similar textbooks

Related questions

Q: A3kg crate is placed at the bottom of an inclined frictionless plane making an angle 30° above the…

Q: (II) What is the minimum work needed to push a 950-kgcar 710 m up along a 9.0° incline? Ignore…

A: Given data The mass of the car is m = 950 kg. The distance covered by the car is d = 710 m. The…

Q: A crane lifts a 650-kg beam vertically upward 23.0 m and then swings it horizontally a distance of…

A: Given: The mass of the beam is 650 kg. The vertical displacement of the beam is 23 m. The horizontal…

Q: A 1000N block was pushed by a force P of 1500N up an incline upward to the right at a slope of 3…

Q: A crane lifts a 650 kg beam vertically upward 9.6 m and then swings it westward 18 m. How much work…

Q: A young boy pushes a cart with a force of 29 N directed at an angle of 25° below the horizontal. If…

Q: A 10.0 kg block is pushed at an angle of 30.0 degrees across a rough horizontal floor of 1.5 m long.…

A: mass of the block= m = 10kg frictional force = f = 150 N displacement= S = 1.5 m total work= W =…

Q: A block of mass m = 4.8 kg is placed on a rough incline surface making an angle 0 = 24.2• with…

Q: A crane lifts a 650 kg beam vertically upward 10.8 m and then swings it westward 18 m. How much work…

A: The formula for workdone is W=Fxcosθ

Q: If work W is required to stretch an ideal spring a distance x from its unstretched length, what work…

A: spring

Q: Find the work done by 45N force in pulling the suitcase at an angle of 50d egrees with respect to…

Q: find the work done by a 45 N force in pulling the suitcase at an angle of 50 degrees with respect to…

A: According to given question, We have to calculate the work done for pulling the suitcase.

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: An archer pulls a bowstring back 0.500 m by exerting a force that increases uniformly from zero to…

A: It is given that, x=0.500 mF=250 N

Q: A block of mass 3.57 kg is drawn at constant speed a distance 4.06 meters along a horizontal floor…

A: Given, Mass of block m = 3.57 Kg Distance d = 4.06 m Force F = 7.68 N Angle θ=15∘

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: An object is subject to a force F = (571i − 101j) N such that 10,925 J of work is performed on the…

Q: One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 217 N with its beakas it…

Q: How much work does it take to slide a crate 26 m along a loading dock by pulling on it with a 180-N…

A: Given Information: The distance is D=26 m The force is F=180 N The angle from the horizontal is 26°…

Q: An object of mass 5 kg is pulled by a constant force of 6.2 N at an angle of 350 above the…

A: Given data: Force (F) = 6.2 N Angle (θ) = 35° above the horizontal Distance (d) = 7 m Friction is…

Q: A 185 kg refrigerator is placed inside a mobile freight transport by pushing it up on a 10.0 m ramp…

Q: Calculate the power output needed for a 952-kg car to climb a 2.00° slope at a constant 33 m/s while…

Q: A bowstring behaves like a spring with a spring constant of 420 N/m. It is initially pulled back 30…

Q: The force on a particle is directed along an x axis and given by F = F0(x/x0 - 1) where x is in…

A: The force on a particle directed along x axis is given by,

Q: "A 4.00-kg box of fruit slides 8.0 m down a ramp, inclined at 30.0e from the horizontal. If the box…

Q: A 13.8 kg crate is pulled up a rough inclinewith an initial speed of 1.5 m/s. The pullingforce is…

A: Let the mass of the crate be denoted by m, the pulling force as F, the force of friction as f , v…

Q: Suppose a 925-kg car climbs a 2.05° slope at a constant speed of 30.5 m/s. Calculate the power…

A: Since, the car climbs the slope with a constant velocity, the expression for the power required is,

Q: The figure here shows an overhead view of three horizontal forces acting on a cargo canister that…

A: We are given the magnitude of all the three forces acting on the canister, F₁= 2.8N F₂= 3.6N F₃= 10N…

Q: ,2 54. A 5.0-kg box has an acceleration of 2.0 m/s when it is pulled by a horizontal force across a…

Q: The force F3, 13.88 N, acts on the block at an angle of 155.98 degrees. If the block moves to the…

A: Here, the work done by F3 can be given as The minus sign indicates that the work done by F3 and the…

Q: A cable exerts a constant upward tension of magnitude 2.26 ✕ 104 N on a 2.00 ✕ 103 kg elevator as it…

A: Write the equation for work done

Q: A concrete block is pulled 8.0 m across a frictionless surface by means of a rope. The tension in…

A: Given data: Displacement (d) = 8.0 m Tension force (F) = 40 N Net work done (W) = 247 J Required:…

Q: The coefficient of kinetic friction between a suitcase and thefloor is 0.272. If the suitcase has a…

Q: • A 1300-kg elevator is lifted at a constant speed of 1.3 m>s througha height of 22 m. How much…

Q: How much work is done by a boy pulling his sister 30.0 m in a wagon if he applied 50 N force at…

Q: In the figure, a constant force F of magnitude 84.0 N is applied to a 3.0 kg shoe box at angle p =…

A: this problem can be solved by work energy theorem which states that work done is equals the change…

Q: A cable exerts a constant upward tension of magnitude 2.26 ✕ 104 N on a 2.00 ✕ 103 kg elevator as it…

Q: A man pushes an 46-N crate a distance of 62 m upward along a frictionless slope that makes an angle…

Q: A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of…

A: Given that Distance moved by the wheelbarrow d = 5.0 m ( let it is moved along right direction)…

Q: In the figure shown, if the mass (m=8 Kg) is moving with constant speed and traveled a distance d=18…

A: We know that work done W = force ×displacement

Q: A crane lifts a 650 kg beam vertically upward 10.1 m and then swings it westward 18 m. How much work…

A: Here the workdone is only in upward direction. No workdone in horizontal direction.

Q: If an object is moved a distanced up an inclined plane at an angle of θ with respect to the…

Q: Calculate the power output needed for a 952-kg car to climb a 2.00° slope at a constant 33 m/s while…

Q: A block of mass m= 2.50 kg is pushed a distance d = 2.20 m along a frictionless horizontal table by…

A: Given data: Mass (m) = 2.50 kg Distance (d) = 2.20 m Applied force (F) = 16.0 N Angle (θ) = 25.0°…

Question

Problem 2: What is the minimum work needed to
push a 950-kg car 810 m up along a 9.0o incline? (a)
Ignore friction. (b) Assume the effective coefficient
of friction retarding the car is 0.25.

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 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (K=0.20) at constant velocity by a force directed 25 above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
The surface of the preceding problem is modified so that the coefficient of kinetic friction is decreased. The same horizontal force is applied to the crate, and after being pushed 8.0 m, its speed is 5.0 m/s. How much work is now done by the force of friction? Assume that the crate starts at rest.
Describe a situation in 4iich a force is exerted for a long time but does no work. Explain.
A cart is pulled a distance D on a flat, horizontal surface by a constant farce F that acts at an angle with the horizontal direction. The other forces on the object during this time are gravity (Fw) , normal forces (FN1) and (FN2) , and rolling frictions Fr1 and Fr2 , as shown below What is the work done by each force?
The force F(x) varies with position, as shown beolow Find the work done by this force on a particle as It moves from x=1.0 m to x=5.0 m.
A particle of mass 2.0 kg moves under the influence of the force F(x)=(5x2=7x)N . Suppose a frictional force also acts on the particle. If the particle’s speed when it starts at x=4.0 m is 0.0 m/s and when it arrives at x=4.0 m is 9.0 m/s, how much work is done on it by the frictional force between x=4.0 m and x=4.0 m?
A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30s?
Cite two examples in which a force is exerted on an object without doing any work on the object.
A baseball of mass 0.25 kg is hit at home plate with a speed of 40 m/s. When it lands in a seat in the left-field bleachers a horizontal distance 120 m from home plate, it is moving at 30 m/s. If the ball lands 20 m above the spot where it was hit, how much work is done on it by air resistance?
Coal is lifted out of a mine a vertical distance of 50 m by an engine that supplies 500 W to a conveyer belt. How much coal per minute can be brought to the surface? Ignore the effects of friction.
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance?
Check Your Understanding The spring Example 7.5 is compressed 6 cm from its equilibrium length. (a) Does the spring force do positive or negative work and (b) what is the magnitude?