How fast is the rock moving when rock is hitted on ground
If i drop a rock off a cliff and it takes 4s before i see it hit the ground,
A) how high is the cliff?
B) How fast is the rock moving when it hits the ground?
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What force causes the centripetal acceleration when the coin is stationary relative to the turntable? What is the coefficient of static friction between coin and turntable?
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If i drop a rock off a cliff and it takes 4s before i see it hit the ground, A) how high is the cliff? B) How fast is the rock moving when it hits the ground?
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