1) A student does 125.0 J of work lifting a 12.0 kg book. How high was the book lifted? 1.06m hgh 2) The book from problem 1 is then allowed to slide down a straight ramp which makes a 26.0° angle above the horizontal, and the book reaches its original position at the end of this ramp. How fast would it be going if there was no friction? 6.80 mls 3) If the book is actually going 3.00 m/s, what was the coefficient of friction between the book and the ramp?

1) A student does 125.0 J of work lifting a 12.0 kg book. How high was the book lifted? 1.06m hgh 2) The book from problem 1 is then allowed to slide down a straight ramp which makes a 26.0° angle above the horizontal, and the book reaches its original position at the end of this ramp. How fast would it be going if there was no friction? 6.80 mls 3) If the book is actually going 3.00 m/s, what was the coefficient of friction between the book and the ramp?

Name: image1 is the information. Do question 3 plzQuestion3a: If the book is
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: image1 is the information. Do question 3 plzQuestion3a: If the book is actually going 3.00 m/s, what was the coefficient of friction between the book and the ramp? (3b) How much work did friction do on the book? 1) A student does 125.0 J of work lift

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section: Chapter Questions

Problem 51A

See similar textbooks

Similar questions

A 5.0-kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of = 30 with the horizontal, as shown in Figure P5.76. If the coefficient of kinetic friction between block and wall is 0.30, determine the work done by (a) , (b) the force of gravity, and (c) the normal force between block and wall, (d) By how much does the gravitational potential energy increase during the blocks motion? Figure P5.76
Two students throw identical snowballs from the same height; both snowballs having the same initial speed vo ( Fig. 4.25). Which snowball has the greater speed on striking the level ground at the bottom of the slope? Justify your answer using energy considerations. Figure 4.25 Away They Go! See Short Answer Question 16.
Suppose you are jogging at constant velocity. Are you doing any work on the environment and vice versa?
A massless spring with force constant k=200N/m hangs from the ceiling. A 2.0-kg block is attached to the free end of the spring and released. If the block falls 17 cm before starting back upwards, how much work is done by friction during its descent?
A 0.20-kg ball is thrown upward. How much work is done on the ball by gravity as the ball rises between heights of 2.0 m and 3.0 m?
A hummingbird is able to hover because, as the wings move downward, they exert a downward force on the air. Newtons third law tells us that the air exerts an equal and opposite force (upward) on the wings. The average of this force must be equal to the weight of the bird when it hovers. If the wings move through a distance of 3.5 cm with each stroke, and the wings beat 80 times per second, determine the work performed by the wings on the air in 1 m if the mass of the hummingbird is 3.0 g.
Spiderman, whose mass is 80.0 kg, is dangling on the free end of a 12.0-m-long rope, the other end of which is fixed to a tree limb above. By repeatedly bending at the waist, he is able to get the rope in motion, eventually getting it to swing enough that he can reach a ledge when the rope makes a 60.0 angle with the vertical. How much work was done by the gravitational force on Spiderman in this maneuver?
An electric scooter has a battery capable of supplying 120 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly ter-rain if the rider and scooter have a combined weight of 890 N?
A tension force of 175 N inclined at 20.0 above the horizontal is used to pull a 40.0-kg packing crate a distance of 6.00 m on a rough surface. If the crate moves at a constant speed, find (a) the work done by the tension force and (b) the coefficient of kinetic friction between the crate and surface.