6) A sky diver with a mass 80.0 kg is falling in a spread eagle formation with an area of 0.70 m^2.
(You can assume a drag coefficient of 1.0, and density of air 1.20 kg/m^3).
a) Draw the free body diagram of the skydiver when he reaches terminal velocity
b) Calculate the terminal velocity
7) A golfer putts a 50.0 g ball with a speed of 2.5 m/s. Friction exerts 0.020 N retarding force on
the ball and slows it down. Will the putt reach the hole 10.0 m away? (Find how far the gulf bar
travels).
8) Suppose you have a 111-kg wooden crate resting on a wood floor ($\mu_s$ = 0.5; $\mu_k$ = 0.3)
a) What maximum force can you exert horizontally on the crate without moving it?
b) If you continue to exert this force once the crate starts to slip, what will the magnitude of its
acceleration then be?
