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OpenStudy (anonymous):

1,700 kg car coasts down a hill starting from rest and decreases its height by 22 m over a distance of 110 m of travel. How fast will it be going at the end of the hill, if friction has no effect in slowing its motion? I have the answer I just need to know how to work it out the answer is 21m/s

OpenStudy (anonymous):

just need help on how to explain this answer

OpenStudy (anonymous):

please help !!

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