Q6 From a window on the fifth floor of a builings 15 mup uou drop two tennis balls with an interval of 1.5 between the first. and the second.
(a) Where is the first ball when you release the second? Where is the second ball when the first hits the ground?
(b) What is the mtan instaneous velocity of the first ball relative to the second just before the first hits the ground?
(c) What is the ins instantaneous acceleration of the first ball relative to the second