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April 19, 2014

Homework Help: Physics

Posted by Will on Friday, January 6, 2012 at 9:30pm.

A 1000 kg car is moving at a constant speed of 7 m/s when it hits the back bumper of another car with 1200 kg of mass moving in the same direction at a constant speed of 6 m/s. As a result of the collision both bumpers get coupled. Show all work and calculations.
1. What is the combined mass of both cars?
2. What is the combined weight of both cars?
3. What is the total momentum of the system before and after the collision?
4. What is the speed of both cars after the collision?
5. What is the combined kinetic energy of both cars after the collision?

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