An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes an angle of 35 o with the horizontal. The work done by the force of gravity (in J) is: a. 103 O b. 137 С. 160 d. 229 О е. 203

An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes an angle of 35 o with the horizontal. The work done by the force of gravity (in J) is: a. 103 O b. 137 С. 160 d. 229 О е. 203

Name: An 80-N crate slideswith constant speed adistance of 5.0 mdownward al
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: An 80-N crate slideswith constant speed adistance of 5.0 mdownward along arough slope that makesan angle of 35 o withthe horizontal. The workdone by the force ofgravity (in J) is:а. 103O b. 137С. 160d. 229е. 203

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 76AP: A 5.0-kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of...

See similar textbooks

Similar questions

A bungee cord exerts a nonlinear elastic force of magnitude where is the distance the cord is stretched, and How much work, must be done on the cord to stretch it 16.7 m?
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.
Check Your Understanding When the length of the spring in Example 8.3 changes from an initial value of 22.0 cm to a final value, the elastic potential energy it contributes changes by 0.0800 J. Find the final length.
Check Your Understanding Fend the forces on the particle in Example 8.6 when kinetic energy is 1.0 J at x=0.
An electron in a television tube is accelerated uniformly from rest to a speed of 8.4107 m/s over a distance of 2.5 cm. What is the power delivered to the electron at the instant that its displacement is 1.0 cm?
Describe a situation in 4iich a force is exerted for a long time but does no work. Explain.
The force exerted by a diving board is conservative, provided the internal friction is negligible. Assuming friction is negligible, describe changes in the potential energy of a diving board as a swimmer drives from it, starting just before the swimmer steps on the board until just after his feet leave it.
A 5.0-kg box has an acceleration of 2.0m/s2 when it is pulled by a horizontal force across a surface with K=0.50 . Find the work done over a distance of 10 cm by (a) the horizontal force, (b) the frictional force, and (c) the net force. (d) What is the change in kinetic energy of the box?
When released, a 100-g block slides down the path shown below, reaching the bottom with a speed of 4.0 m/s. How much work does the force of friction do?
The man of the preceding problem consumes approximately 1.05107J (2500 food calories) of energy per day in maintaining a constant weight. What is the average power he produces over a day? Compare this with his power production when he runs up the stairs.
Give an example of something we think of as work in everyday circumstances that is not work in the scientific sense. Is energy transferred or changed in form in your example? If so, explain how this is accomplished without doing work.
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.)