The model rocket is fired vertically from rest. It has a net acceleration of 17.5m/s2. After 1.5s, its fuel is exhausted and its only acceleration is that due to gravity.
A. ignoring air resistance, how high does the rocket travel?
B. how long after liftoff does the rocket return to the ground? Assuming it falls vertically down too.
C. a coin is place on a turntable that is rotating at 33.3 rpm. If the coefficient of static friction between the coin and theturntable is 0.1, how far from the center of the turntable can the coin be placed without having it slip off.