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A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. Its speed is 38 m/s when it reaches ground level. What was its speed when its height was half that
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A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. Its speed is 38 m/s when it reaches ground level. What was its speed when its height was half that of its starting point

User Fred Kleuver
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1 Answer

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Step-by-step explanation:

look !

speed= 38m/s

start from rest= 0

User Parhum
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