Question

Write clearly & legibly. Show all work. Use units. Assume g = 10/m/s2. Ignore air resistance. Due next Monday as a handwritten hardcopy at period start.

1. A 100 g ball is held in a person’s hand. The person throws the ball straight up in the air.

During the throw, the person accelerates their hand upward from rest to an upward velocity of 7.5 m/s after an upward displacement of 75 cm. Assume constant acceleration of the hand during the upward throw.

D. (10 pts) (10 pts) The thrower quickly decelerates their hand and the ball leaves the throwers hand when the upward displacement exceeds 75 cm. Draw an accurate FBD for the ball immediately after the ball leaves the thrower’s hand.

E. (10 pts) Write the magnitude of all forces in the above FBD. What is the agent for each of these forces? What is the object on which the force is acting?

F. (10 pts) What is the acceleration of the ball after it leaves the thrower’s hand?

Answer 1