Today we got a bit more specific about energy and talked about potential energy, kinetic energy and conservation of energy.
For homework this week I want you to answer the following questions. Good luck!
Assume the following to answer the questions below:
Mass of ball = .05 kg
Velocity of ball on ramp = .4 m/s
Time on ramp = .3 s
Time to stop rolling after getting off ramp 3 s
Distance ball rolled after getting off ramp = 3 m
What makes the ball stop after getting off the ramp?
What was the velocity of the ball after getting off the ramp?
What was the gPE of the ball at the top of the ramp?
What was the gPE of the ball at the bottom of the ramp?
What happened to the gPE?
What was the KE of the ball at the bottom of the ramp?
Where did the energy of the system originally come from?
What amount of work did friction do to the ball after it got off the ramp to the point where the ball stopped rolling?
Where did the energy go that caused the ball to stop?
What is the friction force of the carpet?
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