Posted by **Antony** on Sunday, March 10, 2013 at 8:02am.

Car A of mass 1 000 kg,stationary at a traffic light,is hit from behind by car B of mass 1 200 kg,traveling at 18 m.s-1. Immediately after the collision car A moves forward at 12 m.s-1.

1. Assume that linear momentum is conserved during this collision. Calculate the speed of car B immediately after the collision.

2. Modern cars are designed to crumple partially on impact. Explain why the assumption made in the first question may not be valid in this case.

## Answer this Question

## Related Questions

- physics - the most common reasons for rear - end collisions are too short a ...
- physics - several students are riding in bumper cars at an amusement park. the ...
- physics - A delivery truck with a mass of 1700 kg is stopped in the street w/o ...
- kinetics - a stationary car is hit from behind by another car travelling at 40km...
- kinetics - a stationary car is hit from behind by another car travelling at 40km...
- kinetics - a stationary car is hit from behind by another car travelling at 40km...
- kinetics - a stationary car is hit from behind by another car travelling at 40km...
- physics - A car of mass 1500 kg traveling at 15.6 m/s loses its brakes and ...
- physics - 1) What average power is required for a runner with a mass of 85 kg to...
- physics - a car travelling at constant velocity passes a stationary motorcycle ...

More Related Questions