In outer space, far from other objects, two rocks collide and stick together. Before the collision, their momenta were (-10,20,-5) kg-m/s and (8,-6,12) kg-m/s. What was their total momentum before the collision? What must be the momentum of the combined object after the collision?

Fo s Seco 1. A ball of mass 1 kg strikes a wall at an angle of 60° with the wall with a speed of 8 m/s. It bounces back with the same speed and same angle as shown in the figure. Search V (a) Calculate the x and y components of the initial momentum. Don't forget to check the signs of the components the momentum. Px,i= kg m/s kg m/s Py,i= (b) Calculate the x and y components of the final momentum. Px,f= Vkg m/s kg m/s Py,f= (c) Calculate the change in momentum in the x and y directions. Apx= kg m/s дру= kg m/s (d) Calculate the impulse in the x-y directions. Jx= kg m/s kg m/s X Jy = (e) If the ball is in contact with the wall for 10 ms, calculate the component of the force in the x and y directions. Fx= Fy= Note: This question has 7 attempts VN ✔N 4

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This question is a momentum problem

A 500-gram ball traveling to the right at 4.0 m/s collides with and bounces off another ball that is initially at rest. The figure shows the momentum vector of the first ball after the collision. Draw (a) the momentum vector of the first ball before the collision and (b) the momentum vector of the second ball after the collision.

You were driving a car with velocity m/s. You quickly turned and braked, and your velocity became m/s. The mass of the car was 1200 kg. (a) What was the (vector) change in momentum Ap during this maneuver? Pay attention to signs. ap kg m/s (b) What was the (vector) impulse applied to the car? (vector) impulse: N.S (c) If the maneuver took 5 seconds, what was the the average (vector) force exerted on the car? (The net force is due to the ground and the Earth; the y components of these forces cancel.) net Additional Materials eBook

Was momentum conserved in these collisions?  If not, provide a brief explanation.

Two cars are on a track, and they collide. Cart, has initial momentum of +5kgm/s, and final momentum -3kgm/s   Cart 2 has momentum initially of -4kg m/s and final momentum of +4kg m/s. Explain what you think about the frition on the track.

Two objects collide. Object 1 has a momentum of 49 kg•m/s, and Object 2 has a momentum of 96 kg•m/s before the collision. What is the total momentum after the collision?

Ans d e f