7 1. A 5-kg mass moving to the right at a speed of 10 m/s collides with anunknown mass initially moving to the left at the same speed. After collision,they both move to stick together and stopped, V = 0 m/s. Find the unknownmass.2. A 200-g ball moving toward the right at a speed of 30 cm/sstrikes a 400-gball moving toward the left at an unknown speed, v. After collision they sticktogether and remain motionless. Find the speed of the 400-g ball before thecollision.3. A 3-kg block moving 4 m/s to the right collides with an 8-kg block moving 2m/s to the left. a) If the two blocks stick together, what is the final velocity? b)If the two blocks collide elastically and the 3-kg block moves to the left at 1m/s, what is the final velocity of the 8-kg block? c) How much kinetic energy is"lost" in the collision in a)?4. aWhat is the momentum of a jeepney weighing 1.5 x 10- N moving at a velocityof 20 m/s? b) How long must an 88-N force act on the jeepney to support thatmomentum?5. How long must a force of 100 N act on a 20-kg rocket to increase its speed from100 m/s to 150 m/s?6. A 1500-kg car increases its speed 10 m/s to 30 m/s in 4 seconds. a) What is theinitial momentum of the car? b) What is the final momentum? c) What is thechange in its momentum? d) What force produced this change in the momentumof the car?7. What is the momentum of an electron (Mo = 9.1 x 101 kg) which is moving at aspeed of 2.0 x10" m/s?

Name: 7 1. A 5-kg mass moving to the right at a speed of 10 m/s collides wit
Uploaded: 2024-03-20T06:57:37.000Z
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Description: 7 1. A 5-kg mass moving to the right at a speed of 10 m/s collides with anunknown mass initially moving to the left at the same speed. After collision,they both move to stick together and stopped, V = 0 m/s. Find the unknownmass.2. A 200-g ball movin