Two equal-mass balls made of different materials swing down at the ends of strings from equal heights and hit identical bricks. Ball 1 bounces back, whereas Ball 2 flattens and stops when it hits the brick. Ball 1 knocks the brick over and Ball 2 does not. Work with your group and use your knowledge of impulse-momentum to explain why. Specify the system. On your whiteboard, include a bar chart of the process that is consistent with your chosen system.

Show all work. A rifle is aimed at a block of wood which is suspended directly above the muzzle of the rifle. The rifle is fired, and the bullet is embedded in the block of wood. The speed of the bullet just before it hits the block is 600 m/s. The mass of the bullet is 7.0g, and the mass of the wooden block is 93.0g. a) what is the speed of the block/bullet after the collision? b) How high does the block/bullet travel after the collision?

complete the following 3 steps. 1. Indicate what your chosen system is (which objects are included in the system?) as well as your initial and final instants. Explain how your choice will help you solve the problem. 2. Draw a momentum-impulse bar chart for your chosen system that is consistent with the information given. 3. Write an equation using the bar chart as a guide and solve for any unknowns. A 6-kg bowling ball moving at 3 m/s hits a single 2-kg pin, knocking it forward at 6 m/s. If the collision took 0.050 s, what average force was exerted on the pin?

complete the following 3 steps. 1. Indicate what your chosen system is (which objects are included in the system?) as well as your initial and final instants. Explain how your choice will help you solve the problem. 2. Draw a momentum-impulse bar chart for your chosen system that is consistent with the information given. 3. Write an equation using the bar chart as a guide and solve for any unknowns. A .06 kg tennis ball hits a wall with a velocity of 30 m/s and rebounds at about the same speed. What is the change in momentum of the ball from before the collision to after?

A large raindrop--the type that lands with a definite splat--has a mass of 0.014 g and hits your roof at a speed of 8.1 m/s. Part A What is the magnitude of the impulse delivered to your roof? Express your answer with the appropriate units. J = Part B Fav = μA Value .0 If the raindrop comes to rest in 0.37 ms, what is the magnitude of the average force of the impact? Express your answer with the appropriate units. μA Units Value 2 ? Units ?

The ball only loses energy during the collisions. Energy is conserved between collisions. We will denote E the total energy of the ball after the first collision, E2 the total energy of the ball after the second collision, and in general, En will represent the total energy of the ball after the nth collision. Consider the floor to be the reference for zero potential energy. Question 4 a. Find the coefficient of restitution in terms of the ball's kinetic energy just before and just after the nth collision (n > 2). b. If the coefficient of restitution is e = 0, what does that imply about the energy lost during the collision? c. If the coefficient of restitution is e = 1, what does that imply about the energy lost during the collision?

A rutber bell and a clay ball have oqual mass and are dropped onto a digital scale. The rubber ball bounces back to nearly the same height. The clay bell sticks to the scale when it hits. For the (single) imeraction with the scale. a. Whar is the ratio af the change of the clay ball's momentum to the change of the rubber ball's momentum? b. What is the ratio of the impulse impaned to the clay ball to the impulse imparted so the rubber ball? Iruter c. Which of the following graphs could epresent, o the same scale, the force exerned by the scale on each ball as a function of time? Select an answer for the rubber ball and an ansaer for the clay ball. F(N) F(N) F(N) I (s) I (s) 1 (s) F(N) F(N) clay ball: rubber ball: B) 1 (s) D) I (s)