1.) A book of mass 0.55kg is lifted from the floor to a height of 3.5m at a constant velocity. Recall the definition of work. How much work is done by FLift? By Fg? By Fnet? How much gravitational PE does the book have at the top relative to the floor? 2.)If the object in Q1 is released from rest after it is lifted, what is its kinetic energy just before it hits the floor? What is its speed?
1.) A book of mass 0.55kg is lifted from the floor to a height of 3.5m at a constant velocity. Recall the definition of work. How much work is done by FLift? By Fg? By Fnet? How much gravitational PE does the book have at the top relative to the floor? 2.)If the object in Q1 is released from rest after it is lifted, what is its kinetic energy just before it hits the floor? What is its speed?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter5: Energy
Section: Chapter Questions
Problem 80AP: A 5.0-kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of...
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1.) A book of mass 0.55kg is lifted from the floor to a height of 3.5m at a constant velocity. Recall the definition of work. How much work is done by FLift? By Fg? By Fnet? How much gravitational PE does the book have at the top relative to the floor?
2.)If the object in Q1 is released from rest after it is lifted, what is its kinetic energy just before it hits the floor? What is its speed?
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