107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides head-on with a padded goalpost and experiences a backward force of 1.72 × 104 N for 5.45 × 10–2 s. a, Calculate the final velocity in the horizontal direction of the rugby player, in meters per second.

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.

8.9 · A 0.160-kg hockey puck is moving on an icy, frictionless, horizontal surface. At t = 0, the puck is moving to the right at 3.00 m/s. (a) Calculate the velocity of the puck (magnitude and direction) after a force of 25.0N directed to the right has been applied for 0.050 s. (b) If, instead, a force of 12.0 N directed to the left is applied from 1 = 0 to t = 0.050 s, what is the final velocity of the puck?

A 115kg rugby player is initially running at 5.5 m/s in the + direction, but collides with a goalpost and experiences a backward force of 1.71 × 10^4 N for 5.25 × 10^-2 s. what is the final \velocity of the rugby player in the horizontal direction

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.

Daredevil Darla has heard that to avoid injury when jumping out of her rocket she should bend her knees upon landing. Darla has a mass of 74 kg. If just before contact with the ground, she has a downward speed of 7.3 m/s, then. . .   (a) In a stiff -legged landing she comes to a halt in 2.0 ms. Find the average net force that acts on her during this time. (   b) When she bends her knees, Darla comes to a halt in 0.10 s. Find the average net force now.   (c) During the landing, there are two forces acting on Darla: the normal force from the ground points upward, while her weight force points downward. The average net force acting on Darla includes both of these forces. Taking into account the directions of the forces, find the force of the ground on Darla in parts (a) and (b).

A soccer player hits a ball incoming with 2.4 m/s in the West direction. After the kick, the ball changes its direction by 90 degrees and start moving with 1.2 m/s in the North. What is the average force applied if the interaction time is 0.2 seconds and the mass of the ball is 0.3 kg.

A 12000 kg railroad car travelling at 10 m/s strikes a second car and comes to rest in 2 seconds. What average force was exerted to stop the first car? a O b c Od 120,000 N 60,000 N 24,000 N 240,000 N

A 90.0 kg fullback running 36.9° north of east with a speed of 5.00 m/s is tackled and held onto by an 60.4 kg opponent running north with a speed of 5.34 m/s. What is the magnitude of the velocity of the players immediately after the tackle?