1. During a practice shot put throw, the 7.9-kgkg shot left world champion C. J. Hunter's hand at speed 14 m/sm/s. While making the throw, his hand pushed the shot a distance of 1.6 mm. Assume the acceleration was constant during the throw.

A) Determine the acceleration of the shot.

B) Determine the time it takes to accelerate the shot.

C) Determine the horizontal component of the force exerted on the shot by hand.

2. 0.14-kgkg apple falls off a tree branch that is 2.1 mm above the thick grass. The apple sinks 0.062 mm into the grass while stopping.

Determine the average contact force that the grass alone exerts on the apple while stopping it. Ignore air resistance.

3. Estimate the average force that a baseball pitcher's hand exerts on a 0.145-kgkg baseball as he throws a 45-m/sm/s pitch. Assume the pitcher accelerates the ball through a horizontal distance of 2.0 mm, from behind his body to where the ball is released and ignore the air resistance.Express your answer with the appropriate units.