1.Two cars collide at an intersection and stick together. Car A, with a mass of 1200 kg , was going east at vA = 25 m/s before the collision while car B, of mass 1600 kg , was going north at vB = 16 m/s . What is the speed of the cars after the collision?   2.A head-on, elastic collision between two particles with equal initial speed v leaves the more massive particle (mass m1 ) at rest. The less massive particle has mass m2 . Find the ratio of the particle masses. Then find the final speed of the less massive particle.

2. You (74 kg mass) skate on ice at 3.6 m/s to greet your friend (58 kg mass), who is standing still, with open arms. As you collide head-on, while holding each other, with what speed do you both move off together? m/s Ossi sf60 ss 60 ssf60

A 1.30 kg mass (mass 1) moves to the right with a speed of 2.50 m/s and collides with a stationary 1.30 kg mass (mass 2). Assuming the collision is elastic, what are the velocities of the first and second masses following the collision?  A. mass 1: 1.25 m/s to the right, mass 2: 1.25 m/s to the right mass  B. mass 1: 0.00 m/s, mass 2: 2.50 m/s to the right   C. mass 1: 1.25 m/s to the left, mass 2: 1.25 m/s to the right  D. mass 1: 2.00 m/s to the right, mass 2: 0.50 m/s to the right

E14.A railroad car with a mass of 33000.0 kg collides and couples with a second car of mass 10000 kg that is initially at rest. The first car is moving with a speed of 6.0m/s prior to the collision. If external forces can be ignored, what is the final velocity of the two railroad cars after they couple?

Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1450 kg and is approaching at 6.5m/s due south. The second car has a mass of 750 kg and is approaching at 16 m/s due west. What is the magnitude of the final velocity, in meters per second, of the cars. What is the direction of the final velocity, in degrees south of west, of the cars. What is the change in kinetic energy, in joules, for the collision? (This energy goes into deformation of the cars.)

I.  A lump of clay (m = 3.01 kg) is thrown towards a wall at speed v = 3.15 m/s.  The lump sticks to the wall.  (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   II.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.15 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   III.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.24 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic…

1. A 0.0850-kg bullet is fired at a stationary tin can whose mass is 0.215 kg. The bullet passes through the can, exiting the back of the can with a speed of 22.5 m/s. If the speed of the bullet is 99.0 m/s before it hits the can, what is the speed of the can after the collision?

A blue pool ball (p = 33 kg x m/s) moves towards a red pool ball (p = -13 kg x m/s).  Then, the two pool balls collide.  After the collision, the blue pool ball has no momentum.  How much momentum does the red pool ball have after the collision?  Explain your answer.

4. A 10-kg body is moving through space (ignore gravity) in the positive direction of a y axis with a speed of 140 m/s when, due to an internal explosion, it breaks into two pieces: piece A (mass = 2 kg) and piece B (mass = 8 kg). Piece A moves away from the point of the explosion with a speed of 50 m/s in the +x direction. Piece B has a velocity g after the explosion. a. What is the total linear momentum of the two-piece system after the explosion? Put your answer in unit vector notation. b. What is the x component and y component of the velocity VB of piece B after the explosion? Remember to include a plus or minus sign to indicate direction.