A crate of mass M starts from rest at the top of a frictionless ramp inclined at an angle of ? above the horizontal. Find its speed at the bottom of the ramp, at a distance d from where it started. Do it two ways: a. Take the level at which the potential energy is zero to be at the bottom of the ramp with y positive upward. b. Take the level at which the potential energy is zero to be at the top of the ramp with y positive upward. c. Why didn’t the normal force show up in either solution?
A crate of mass M starts from rest at the top of a frictionless ramp inclined at an angle of ? above the horizontal. Find its speed at the bottom of the ramp, at a distance d from where it started. Do it two ways: a. Take the level at which the potential energy is zero to be at the bottom of the ramp with y positive upward. b. Take the level at which the potential energy is zero to be at the top of the ramp with y positive upward. c. Why didn’t the normal force show up in either solution?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 68P: Shown below is a box of mass m1 that sits on a frictionless incline at an angle above the horizontal...
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A crate of mass M starts from rest at the top of a frictionless ramp inclined at an angle of ?
above the horizontal. Find its speed at the bottom of the ramp, at a distance d from where it
started. Do it two ways:
a. Take the level at which the potential energy is zero to be at the bottom of the ramp with
y positive upward.
b. Take the level at which the potential energy is zero to be at the top of the ramp with y
positive upward.
c. Why didn’t the normal force show up in either solution?
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