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Homework Statement
1a. is the statement "there is no place in the universe where a body can exist with no force acting on it" if aggree or dissagree explain why?...
b. Is it possible for a centripetal force to do work on an object? explain your answer?
c. why do roller coasters rides always start by going up hill?
d. could a slow moving truck have more kinetic energy than a a fast moving car?
e. you push a book acrooss a horizontal desk at a constant velocity, you are supplying some energy to the book into what form (s) does the energy go?
Homework Equations
there are no really equations that i am aware to this. I am a noob!>. help!
The Attempt at a Solution
well my answer for the first one i think its true.. i mean anywhere in the universe every object has its own gravitational force acting upon it.. satelites for example keep themselves floating in orbit because of the mooons and earth gravity. hmm any expansion on my comment would be appreciated b c and d i have no clue. I think e. the energy goes into mechanical energy?... THANKS IN ADVANCE
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