Water balloons are dropped from the top of a very tall building by the management of the Santa Cruz Bowling Academy as a nonviolent deterrent to loitering. Each water balloon has a mass of 0.5 kg and a terminal velocity of 25 m/s.
a. When the first balloon hits the ground, the impact time (i.e. the time it takes for the balloon to come to a stop) is 0.05 s.
What is the acceleration of the balloon as it comes to a stop?
b. Use the result of part (a). What is the net force on the balloon during impact?
c. The loiterers respond by placing pillows on the ground. The effect that this has is to increase the impact time to 0.4 seconds.
What is the new acceleration of the balloons and the net force during impact?
