Homework Help: Physics

Posted by Sarah on Sunday, January 13, 2008 at 10:22pm.

a 5 kg block with a speed of 3 m/s collides with a 10 kg block that has a speed of 2 m/s in the same direction. After the collision, the 10 kg block is observed to be traveling in the original direction with a speed of 2.5 m/s.
a) what is the speed of the 5 kg block immediately after the collision?
b) By how much does the total kinetic energy of the system of the 2 blocks change because of the collision?
c)suppose, instead, that the 10 kg block ends up with a speed of 4 m/s. what then is the change in total KE?

No one has answered this question yet.

Answer this Question

Related Questions

physics - A 5.0 kg block with a speed of 2.8 m/s collides with a 10 kg block ...
Physics - A 3.2 kg block with a speed of 11 m/s collides with a 11 kg block that...
physics - Block A (mass = 3 kg), moving at 10 meters per second, collides with ...
physics - a small block of mass M=0.050 kg is released from rest at the top (h=0...
Physics - A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a ...
Physics - Two blocks, each with a mass = 0.168 kg, can slide without friction on...
physics - A block of mass m = 3.6 kg, moving on a frictionless surface with a ...
Physics - A 1.10 kg} block of wood sits at the edge of a table, 0.790 m above ...
physics - A heavy wooden block rests on a flat table and a high-speed bullet is...
physics - A heavy wooden block rests on a flat table and a high-speed bullet is ...

For Further Reading

First Name:
School Subject:
Answer: