When a car drives off a cliff, why does it rotate forward as it falls? (Consider the torque it experiences as it rolls off the cliff.)
Physics - Anonymous, Friday, April 18, 2008 at 7:23pm
The gravity pulls the front while the back is still supported by normal reaction force. Thus a torque is acting so as to rotate the bus with the front down. The angular momentum produced is conserved and the bus begins to rotate about the free axis passing through its centre of mass.