A 0.25-kg ball, initially at reston a tee, is hit with a bat in the x-direction while 1.00 meter above the ground. If the ball hits the ground 20 meters away and was in contact with the bat for 0.10-s, what average force was exerted on the ball during the contact time?

On the set of a new Hollywood movie, a 74.1-kg stunt actor (Max Payne) is tossed straight out of a helicopter hovering (stationary) at a height of 43.4 meters. The stunt actor is thrown from the helicopter at a speed of 4.17 m/s, eventually landing in the water below.  Determine the stunt actor's impact speed and assume negligible air resistance. You can use the approximation that g = 10 m/s2.

1) A baseball with a mass of 137 g is thrown horizontally with a speed of 40.6 m/s (91 mi/h) at a bat. The ball is in contact with the bat for 1.05 ms and then travels straight back at a speed of 45.4 m/s (102 mi/h). Determine the average force (in N) exerted on the ball by the bat. Neglect the weight of the ball (it is much smaller than the force of the bat) and choose the direction of the incoming ball to be positive.    2)A 4.50 gram bullet is fired from a rifle at a horizontal speed of 210 m/s. If the rifle has a weight of 25.0 N and is initially motionless, determine the recoil speed of the rifle.

A 0.750 kg hammer is moving horizontally at 4.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. (a) Calculate the duration of the impact in seconds. (b) What was the average force in newtons exerted on the nail? |N

A 0.2-kg rubber egg bounces off an actor's roof, remaining in contact with it for 43 ms while changing the egg's velocity from 24.5 m/s directly toward the roof to 13.5 m/s directly away from it. Find the magnitude of the average force applied to the egg by the roof. (Be careful with units!) Fav= = N Record your numerical answer below, assuming three significant figures. Remember to include a "-" when necessary.

During a practice dive, a 45-kgkg diver jumped to a maximum height of 4.4 mm above the water before coming down and entering the water. She came to rest 0.40 ss after hitting the water. Determine the average force that the water exerted on her while stopping her.

A 0.450 kg hammer is moving horizontally at 8.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. (a) Calculate the duration of the impact in seconds. (Enter a number.) S (b) What was the average force in newtons exerted downward on the nail? (Enter a number.) N

A 0.145-kg baseball pitched horizontally at 34.0 m/s strikes a bat and is popped straight up to a height of 55.2 m . a)If the contact time is 2.90 ms , calculate the magnitude of the average force on the ball during the contact. b)Calculate the direction of the average force on the ball during the contact.