a) How can a rocket change direction when it is far out inspace and is essentially in a vacum?
b) A bungee jumper momentarily comes to a rest at the bottom of the dive before they spring back upward. At that moment,describe the bungee jumpers velocity, acceleration,and whether ornot they are in equilibrum?
c) Suppose that a grandfather clock( a simple pendulum device) is running slowly . The time it take to complete each cycleis lomger than it should be. should one shorten or lenghten thependulum to make the clock keep the correct time? .Why?