A 3.000 kg ball is pitched with a kinetic energy of 20.00 Joules. Then the momentum of the ball is A. 7.500 kg m/s. B. 8.350 kg m/s. C. 9.450 kg m/s. D. 10.95 kg m/s. E. 12.50 kg m's.

A. 3.850 Rg m/s D. 4.113 kg-m/s 4.823 kg-m/s B. 4.730 kg-m/s E. C. 5.476 kg-m/s F. 3.735 kg-m/s 1--1 IZJXM A toy train engine (2.1 kg) is moving 0.28 m/s to the right when it collides with a train car (3.2 kg) moving 0.19 m/s in the opposite direction, and they stick together. Find the velocity of the engine-car combination as they move off together. Assume "to the right" is the positive direction. 3. A. -0.00267 m/s D. -0.006516 m/s -0.005211 m/s B. E. -0.002181 m/s -0.003774 m/s C. F. -0.006594 m/s 1--1 [carpet-14]

In the middle of a race, three runners have the following speeds and masses. A. 54 kg, 4.6 m/s B. 65 kg, 4.1 m/s C. 85 kg, 2.6 m/s Order the runners from largest linear momentum to smallest linear momentum. (Use only ' or "-" symbols. Do not include any parentheses around the letters or symbols.)

1.A cart of mass m moves with a speed v on a frictionless airtrack and collides with an identical cart that is stationary. If the two carts stick together after the collision, what is the final kinetic energy of the system?Explain and labled the problem.

A 3.000 kg ball is pitched with a kinetic energy of 20.00 Joules. Then the momentum of the ball is A. 7.500 kg m/s. B. 8.350 kg m/s. C. 9.450 kg m/s. D. 10.95 kg m/s. E 12.50 kg m's.

A 3.000 kg ball is pitched with a kinetic energy of 20.00 Joules. Then the momentum of the ball is A. 7.500 kg m/s. B. 8.350 kg m/s. C. 9.450 kg m/s. D. 10.95 kg m/s. E 12.50 kg m's.

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A 2 kg blob of puty moving at 3 m/s slams into a 2 kg blob of putty at rest. what is the speed of the two stuck together blob of putty immediately after collision?   A. 0.66 m/s   B. 1.5 m/s   C. 1m/s   D. 0 m/s

1. A0.12-kg ball is moving at 6 m's when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. What is the magnitude of the change in the momentum of the ball? a. 0.39 kg m's b. 0.42 kg-m's c. 1.3 kg-m's d. 2.4 kg-m's 2. Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s, and just after is 3.5 m's. What is the magnitude of the change in the ball's momentum? a. 0.09 kg-m/s b. 1.5 kg-m/s c. 4.3 kg-m/s d. 126 kg -m/s

A 50 kg teen running 6 m/s jumps onto a 6 kg skateboard that is stationary. After he jumps on, the combined speed of the skateboard and the teen is 5.4 m/s. The kinetic energy lost in the collision is: A. both 11% and 96 joules B. 96 j C. 11% D. 0