What is the total momentum of a system of three objects with masses 2 kg, 3 kg, and 5 kg, moving at velocities of 4 m/s, -2 m/s, and 3 m/s, respectively?*1 point0 kg m/s9 kg m/s

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?*1 point5053280

Two bodies of masses 8 Kg and 4 Kg are moving with velocities of 12 m/s and -15 m/s respectively. What is the total momentum of the system in Kg-m/s?

A body of mass 4 kg moving at a speed of 3 m/s collides with another body of mass 2 kg moving at 2 m/s in the opposite direction. If the collision is perfectly inelastic, find the velocity of the two bodies after the collision.*1 point1.33 m/s2.34 m/s3.22 m/s4.00 m/s

The momentum of an object of mass 50 kg is 5,000 kg m/s. What is its velocity?

A car of mass 2000 kg which is travelling at 10 m/s crashes into a car of the same mass which is travelling at 5 m/s in the same direction.  Calculate the total momentum of both cars after the collision.10,000 kg m/s40,000 kg m/s20,000 kg m/s30,000 kg m/s2A toy train of mass 0.5 kg which is travelling at 0.5 m/s crashes into a train of mass 1.0 kg which is travelling at 0.25 m/s in the opposite direction.  Upon colliding, the trains stick together.  Calculate their final velocity.0.5 m/s0.33 m/s0.17 m/s0 m/s3A car of mass 1500 kg which is travelling at 10 m/s is involved in a head-on collision with a car of mass 2000 kg which is travelling at 8 m/s.  Upon colliding with one another, both cars stick together.  With what velocity (magnitude and direction) will they move after the collision?8.86 m/s (in the direction in which the 2000 kg car was originally travelling)0.29 m/s (in the direction in which the 2000 kg car was originally travelling)8.86 m/s (in the direction in which the 1500 kg car was originally travelling)0.29 m/s (in the direction in which the 1500 kg car was originally travelling)4An airplane of mass 50,000 kg accelerates along a runway from rest to a velocity of 100 m/s in 20 seconds.  Calculate the average resultant force which was acting on the plane during this time.100,000,000 N250,000 N0.04 N10,000 N5Which of the following is equal to the average resultant force which acts on an object while it is accelerating (or decelerating)?Its change in momentum multiplied by the time for which the force was actingThe time for which the force was acting divided by its change in momentumIts rate of change of momentum (its change in momentum divided by the time for which the force was acting)Its change in momentum (the difference between its initial and final momenta)6The action of a resultant force of 5 kN causes the momentum of a lorry to increase from 100,000 to 120,000 kg m/s.  For how long was this resultant force acting on the lorry?44 seconds4 seconds24 seconds20 seconds