Two bodies of masses 2 Kg and 7 Kg are moving with velocities of 2 m/s and 7 m/s respectively. What is the total momentum of the system in Kg-m/s? a) 50 b) 53 c) 28 d) 0
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Two bodies of masses 2 Kg and 7 Kg are moving with velocities of 2 m/s and 7 m/s respectively. What is the total momentum of the system in Kg-m/s?
a) 50
b) 53
c) 28
d) 0
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- 2. An object that has a small mass and an object that has a large mass have the same momentum. Which object has the larger kinetic energy? a. neither, they have the same kinetic energy b. the one with the small mass c. the one with the large massFA Impulse = f At Iтpulse — = Ap Frictionless Surface A block of mass 5 kg is sitting on a frictionless surface. The block is initially at rest. A force of 5 N is applied for 5 s. What is the Initial momentum of the block? kg m/s Submit Answer Tries 0/2 What is the change in momentum of the block? Kg m/s Submit Answer Tries 0/2 What is the final momentum of the block? kg m/s Submit Answer Tries 0/2 What is the final velocity of the block? m/sBased on your data, What can you conclude about the momentum changes for Balls 1 and 2 in these collisions?
- A green car with mass 1200 kg is travelling east at 40 m/s. Simultaneously, a yellow car with mass 1500 kg is travelling north at 30 m/s. They collide in a perfectly inelastic collision, such that there is no rotation. a. During the collision, which car experiences the greater force? b. What is the momentum of each car before the collision? c. What is the magnitude of the momentum of the two combined cars after the collision? d. What is the speed (magnitude) of the two cars after the collision? e. What is the direction of the motion of the cars after the collison?1. What is the total momentum of the following system? a) Two 1-kg balls move away from each other; one travels with 5 m/s to the right and the other 5 m/s to the left. b) Two balls move away from each other, both travelling at 7 m/s along the same direction. One has mass of 2 kg and the other has a mass of 3 kg.What is the momentum of a 1400-kg vehicle with a speed of at 25 m/s? a) 8.75 × 105 kg-m/s b) 3.5 × 104 kg-m/s c) 57 kg-m/s d) 4.38 x 105 kg-m/s
- Please help!A ball is thrown against a wall; the ball bounces off and returns with speed equal to the speed it had before striking the wall. Which following statement is true about the before and after collision between the ball and the wall The change in momentum of the ball is zero. B) The velocity of the ball is the same. C) The mass of the ball is different. D) The speed of the ball increases. E) Don’t be silly, all of these are false!movement. 12. A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the momentum during the collision are correct? * a. The momentum of the car-truck system is conserved, but the momentum of each one separately is not conserved. b. The momentum of the truck is conserved. c. The momentum of the truck and the car are each conserved. O d. The momentum of the car is conserved. O e. The car and truck must undergo the same change in speed. hp 7. 8
- 18. If car A has a greater momentum than car B, what will happen to both vehicles immediately after they collide? A. They will travel to the right. B. They will travel to the left. C. They will stop immediately. D. It cannot be determined from this information. 19. If both cars are travelling the same speed and car B has a greater mass, what will happen to both vehicles after they collide? A. They will travel to the right. B. They will travel to the left. C. They will stop immediately. D. It cannot be determined from this information.Two cars have the same mass. Car 1 is travelling northward at a speed of 45 mi/hr. Car 2 is travelling southward at a speed of 45 mi/hr. The cars a) have the same momentum and kinetic energy. b) have the same momentum but different kinetic energies. c) have different momenta but the same kinetic energy. d) Have different momenta and kinetic energy.In this perfectly inelastic collision the carts are moving on a frictionless surface. Cart A has a momentum of 24 kg-m/s [West]. Cart B has a momentum 10 kg-m/s. [South] What is the magnitude of their combined momentum after the collision? a) cannot be determined without knowing masses and velocities b) 34 kg-m/s c) 26 kg-m/s d) 14 kg-m/s e) 240 kg-m/s