A car of 1200 kg stays at rest on a horizontal icy rink (no friction at all). David of 60 kg moves at 10 m/s toward the car and collides with the car head-to-head. Just after the collision, David obtains a backward speed of 1.5 m/s away from the car. What is the speed of the car just after the collision, and which direction Does the car go?

A 3.0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6.0-kg mass initially at rest. After the collision, the speed of the 3.0-kg mass is 8.0 m/s, and its velocity vector makes an angle of 35° with the positive x axis. What is the magnitude of the velocity of the 6.0-kg mass after the collision? Assume that collision is elastic.

Box 1 is sitting at rest. Box 2 is moving to the left when it collides elastically with Box 1 (see figure). The surface is frictionless. Take the right to be the positive x-direction.The mass of Box 1 is 3.80 kg. The mass of Box 2 is 5.20 kg. The speed of Box 2 is 1.30 m/s before the collision.What is the velocity of Box 1 after the collision?

A block of wood, with mass 1.50 kg, rests stationary on horizontal ground.The coefficient of kinetic friction between the block and the ground is 0.933.A bullet, with mass 0.250 kg, moving horizontally, hits and sticks into the block of wood.We find that the speed of the block of wood, with the bullet embedded in it, just after the collision is 11.5 m/s. a) Calculate the speed of the bullet before hitting the block of wood. m/s(b) Calculate how far the block slides along the ground before coming to rest. Also include a diagram showing physical situation and coordinates