Posted by **Ashley** on Tuesday, November 1, 2011 at 5:05pm.

A 3.2 kg block with a speed of 11 m/s collides with a 11 kg block that has a speed of 3.3 m/s in the same direction. After the collision, the 3.2 kg block is observed to be traveling in the original direction with a speed of 6.4 m/s. (a) What is the velocity of the 11 kg block immediately after the collision? (b) By how much does the total kinetic energy of the system of two blocks change because of the collision? (c) Suppose, instead, that the 3.2 kg block ends up with a speed of 4.7 m/s. What then is the change in the total kinetic energy?

I got that a. is 4.64Ns, but I'm not sure how to go about the other two parts.

## Answer this Question

## Related Questions

- Physics - a 5 kg block with a speed of 3 m/s collides with a 10 kg block that ...
- physics - A 5.0 kg block with a speed of 2.8 m/s collides with a 10 kg block ...
- Physics - 1- A 5.0 kg block moving east with speed of 6 m/s collides head on ...
- Physics - A 5.0 kg block moving east with speed of 6 kg m/s collides head on ...
- physics - A pendulum with a bob of mass 30g is lifted to height of 5.00cm above ...
- physics - A block of mass m = 3.6 kg, moving on a frictionless surface with a ...
- physics - a small block of mass M=0.050 kg is released from rest at the top (h=0...
- Physics - 2-A 10.0 Kg block is released from point A in the figure below. The ...
- Engineering - A 10.0 Kg block is released from point A in the figure below. The...
- Physics - A 2.50g bullet, traveling at a speed of 425m/s, strikes the wooden ...

More Related Questions