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3 years ago

14

A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. Its speed is 38 m/s when i

t reaches ground level. What was its speed when its height was half that of its starting point

1 answer:

inysia [295]3 years ago

5 0

Explanation:

look !

speed= 38m/s

start from rest= 0

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