Sunday

December 21, 2014

December 21, 2014

Posted by **Anonymous** on Thursday, May 10, 2012 at 12:16am.

2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s. How much energy is lost as heat during the collision?

- Physics -
**drwls**, Thursday, May 10, 2012 at 9:22am1. Think about what would happen to total kinetic energy and you will know the answer.

2. Calculate the final velocity Vf using the law of conservation of momentum, which must be obeyed.

10*4 - 4*4 = 14*Vf

14*Vf = 24 kg*m/s

Vf = +1.714 m/s (+ is to the right)

Now compare initial and finalkinetic energies. That is something you should do yourself.

**Answer this Question**

**Related Questions**

Physics - 1. Will the swinging wonder ever let 2 ball bearings go in and one ...

physics - Standing on top of the science building, which is 48 m high, a group ...

algebra 2 - A company wants to make ball bearings that have a standard diameter...

Physics - Please, help me answer this question. Two balls are moving in the same...

physics please help - A 5.00 kg ball (ball 1), moving to the right at a velocity...

Physics (MOMENTUM) - Please, help me answer this question. Two balls are moving ...

Physics (ASAP PLEASE) - Please, help me answer this question. Two balls are ...

physics - A ball bearing is dropped from rest at a point A. At the instant it ...

physics - When 2 balls collide head on where one ball is moving and one ball is ...

physics please help me - A 5.00 kg ball (ball 1), moving to the right at a ...