e Fat an angle to the Ar cos 8. positive, so the sign of Wis force and the displacement. 1 of 1 What is the work W., done on the box by the normal force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) W₁ = 0 J Submit Correct Because there is no component of the normal force in the direction of motion, the normal ford Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) WT= Submit 195| ΑΣΦΑ Previous Answers J * Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box force does negative work on the system.

e Fat an angle to the Ar cos 8. positive, so the sign of Wis force and the displacement. 1 of 1 What is the work W., done on the box by the normal force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) W₁ = 0 J Submit Correct Because there is no component of the normal force in the direction of motion, the normal ford Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) WT= Submit 195| ΑΣΦΑ Previous Answers J * Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box force does negative work on the system.

Name: Part C A box with weight of magnitude FG = 2.00 N is lowered by a rope
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Part C A box with weight of magnitude FG = 2.00 N is lowered by a rope down a smooth plane that is inclined at an angle = 30.0° above the horizontal, as shown in (Figure 1) at left. The normal forceacting on the box has a magnitude n = 1.73 N, the te

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 4P: a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the...

See similar textbooks

Similar questions

“ E=K+Uconstant is a special case of the work energy theorem.” Discuss this statement.
At hokey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different places, which can be described by a position-dependent coefficient of kinetic friction. For a puck moving along the x-axis, the coefficient of kinetic friction is the following function of x, where x is in m: (x)=0.1+0.05x . Find the work done by the kinetic frictional forte on the hockey puck when it h moved (a) from x=0 to x=2 m, and (b) from x=2 m to x=4 m.
Two bodies are interacting by a conservative force Show that the mechanical energy of an isolated system consisting of two bodies interacting with a conservative force is conserved. (Hint: Start by using Newton’s third law and the definition of work to find the work done on each body by the conservative force.)
(a) What is the average useful power output of a person who does 6.00106J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
Find the work done by the same force in Example 7.4, between the same points, A=(0,0) and B=(2m,2m) , over a circular arc of radius 2 m, centered at (2m,0) . Evaluate the path integral using Cartesian coordinates. (Hint: You will probably need to consult a table of integrals.)
Consider a particle on which several forces act, one of which is known to be constant in time: . As a result, the particle moves along the x-axis from x=0 to x=5 m and then parallel to the y-axis from y=0 to y=6 m. What is the work done by ?
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.
A horizontal force of 20 N is required to keep a 5.0 kg box traveling at a constant speed up a frictionless incline for a vertical height change of 3.0 m. (a) What Is the work done by gravity dining this change in height? (b) What Is the work done by the normal force? (c) What is the work done by the horizontal farce?
Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be ignored. Let the work done by the air resistance when the skier goes from A to B along the given hilly path be —2000 J. The work done by air resistance is negative since the air resistance acts in the opposite direction to the displacement. Supposing the mass of the skier is 50 kg, what is the speed of the skier at point B ?
Consider a particle on which several forces act, one of which is known to be constant in time: . As a result, the particle moves along a straight path from a Cartesian coordinate of (0m,0m) to (5m,6m) . What is the work done by ?