A coconut falls out of a tree 12 m above the ground and hits a bystander 3 m tall on the top of the head. If the mass of the coconut is 2.0 kg, calculate the potential energy of the coconut relative to the ground while it is still in the tree.

Which statement is true about an object that is moving in a circular motion due to centripetal force, f, when the radius of its circular motion is doubled? the new force then becomes equal to 2f the new force then becomes equal to f the new force then becomes equal to f/2 the new force then becomes equal to f2 the new force then becomes equal to 1/f