In the figure, a 0.400 kg ball is shot directly upward at initial speed 73.7 m/s. What is its angular momentum about P , 3.

In the figure, a 0.400 kg ball is shot directly upward at initial speed 73.7 m/s. What is its angular momentum about P, 3.99 m horizontally from the launch point, when the ball is

(a) at maximum height

b) halfway back to the ground? What is the torque on the ball about P due to the gravitational force when the ball

is (c) at maximum height and 

(d) halfway back to the ground?