How to solve physics homework help?

Posted on 2014-12-18 07:51:00 in Physics by KEVIN

A truck of mass 3000 Kg, moving at 5 m/s on a level icy road, bumps into a car moving 2.0 m/s in
the same direction. After the impact, the truck has a velocity of 3.0 m/s and the car has a velocity of 6.0 m/s, both forward.

a) What is the mass of the car?

b) Calculate the total kinetic energy before AND after the comsion

c) Was the collision perfectly elastic? Explain.

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