A pitcher throws a fastball with a speed of 45 m/s towards home plate. The batter swings his bat (mbat = 0.94 kg) with a speed of 47 m/s and hits the ball (mball = 0.145 kg) in the opposite direction with a speed of 50 m/s. The time of contact between the bat and the ball is 0.7 milliseconds (0.0007s). 1: What is the change in momentum of the ball in kg*m/? 2: What is the average force in N exerted on the ball by the bat? 3:What is the acceleration of the ball in m/s²?

A 13.8 kg block is sliding along a frictionless surface with a speed of 95.7 m/s. It collides with a second block of mass 93.1 kg. The second block is initially at rest. After the collision, the first block has rebounded with a speed of 26.1 m/s. If this collision is one dimensional, what is the speed in (m/s) of the second block after the collision?

ent ENT Student Answers Page of 5 D. The collision of the egg and the cloth sheet had a longer duration and lower force. A 14 kg-m/s B. 50 kg-m/s 70 kg m/s 140 kgm/s 9. A 5-kilogram ball falls 10 meters. What is the change in momentum of the ball during the fall? C. ► 3 D.

A 0.13 kg baseball has a momentum of p = 11 kg*m/s as it is pitched toward home plate. A 4.2 kg bat swings at the baseball with a momentum of 28 kg*m/s and is in contact with the ball for 0.06 s. Assume the batter doesn't follow through like they should but instead the bat is at rest immediately after being in contact with the baseball (like bunting it). a.What is the magnitude of the velocity of the baseball just before coming in contact with the bat? b.What is the magnitude of the velocity of the baseball immediately after being struck by the bat? c.What is the magnitude of the impulse on the ball?

A 0.14 kg bead slides on a straight frictionless wire and moves with a velocity of 9.5 m/s to the right. The bead collides with a larger 0.12 kg bead that is initially at rest. After the collision, the smaller bead moves with a velocity of 0.73076923076923 m/s. (use many decimal points in your answer in order to make sure you get it exact) a.What is the large bead's velocity after the collision? b.What is the total kinetic energy of the system of beads after the collision? c.What was the total kinetic energy of the system of beads before the collision?

37. A 0.15 kg arrow with a velocity of 18 m/s to the east strikes and pierces an 8-kg target at rest. What is the final velocity of the combined mass? Group of answer choices No answer 0.23 m/s 0.43 m/s 0.13 m/s 0.33 m/s

A 35.0 g bullet strikes a 5.0 kg stationary wooden block and embeds itself in the block. The bullet and block fly off together at 8.6 m/s. What was the original velocity of the bullet? A 1.24 m/s B 9.83 m/s 144 m/s D 1240 m/s O O O O

A rubber ball with a mass of 0.3 kg is dropped onto a steel plate. The ball's velocity just before impact is 4.5 m/s and just after impact is 4.2 m/s. What is the change in the ball's momentum? O 2.61 kg m/s O 4.86 kg m/s 1.37 kg m/s O 3.66 kg m/s

1. A 0.0850-kg bullet is fired at a stationary tin can whose mass is 0.215 kg. The bullet passes through the can, exiting the back of the can with a speed of 22.5 m/s. If the speed of the bullet is 99.0 m/s before it hits the can, what is the speed of the can after the collision?

Two toy cars have a collision and bounce off each other. The first has a mass of 0.5 kg and was initially traveling at 3.5 m/s. The second has a mass of 0.8 kg and had an initial velocity of -2.0 m/s. After colliding the first recoils with a velocity of v1f = -1.19 m/s. After colliding, what is the velocity of the second car? 3.5 m/s -2.0 m/s m=0.5kg m=0.8 kg m-0.5kg m-0.8 kg V=? m=0.5kg m=0.8 kg