Two arrows, each of the same mass, are fired at the same speed toward two targets. One is made from wood and the other is made from steel. The first arrow sticks to the wooden target while the second arrow bounces off the steel target at nearly the same speed. Assume these collisions take the same amount time. Which target feels more force? Answer using ideas of force, impulse, and momentum.

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.144 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.9 m/s, shatters the glass as it passes through, and leaves the window at 11.9 m/s with no change of direction. What is the direction of the impulse that the glass imparts to the baseball? A) opposite the direction of the ball's motion B) neither of these C) in the direction of the ball's motion   Calculate the magnitude of this impulse (a positive number) in N*s.   The ball is in contact with the glass for 0.0102 s0.0102 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number). calculate the average force in N.

A billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 50.0 cm/s, and the second ball stops. What is the change in kinetic energy of the system as a result of the collision?

A 51 kg boy on roller skates moves with a speed of 3 m/s. He runs into a 42 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

A green pool ball (p = 30 kg x m/s) moves towards a yellow pool ball (p = -9 kg x m/s).  Then, the two pool balls collide.  After the collision, the green pool ball has a momentum of 3 kg x m/s.   How much momentum does the yellow pool ball have after the collision?  Explain your answer.

Two rams are fighting and run straight at each other. Ram 1 has m1 = 115 kg and an initial velocity v1 = 9 m/s. Ram 2 has m2 = 127 kg and an initial velocity v2 = -7 m/s. When they collide, they lock horns.  What impulse did Ram 2 deliver to Ram 1?

A 49 kg boy on roller skates moves with a speed of 4 m/s. He runs into a 41 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.149 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.1 m/s, shatters the glass as it passes through, and leaves the window at 11.3 m/s with no change of direction. Calculate the magnitude of this impulse (a positive number). The ball is in contact with the glass for 0.0104 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number).

A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only Ar=0.571 ms, and the radar gun clocks the speed of the ball as = 176 mph after it comes off the club. The golf ball has a mass of my = 45.9 g. What is the magnitude of the impulse imparted to the ball by the club? magnitude of the impulse: What is the magnitude of the average force of contact between the club and the ball? magnitude of the average force of contact: kg m N

In tae-kwon-do, a hand is slammed down onto a target at a speed of 13.2 m/s and comes to a stop during the 5.16 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.654 kg.What is the magnitude of the impulse?8.63 N*s What is the magnitude of the average force on the hand from the target? (Answer 2nd question)