Posted by **Physics** on Tuesday, September 22, 2009 at 7:53pm.

One car has twice the maqss of a second car, but only half as much kiinetic energy. When both cars increase their speed by 7.0 s^-1 m, they then have the smae kinetic energy. What were the original speeds of the two cars?

I got -16 or 2.4

## Answer this Question

## Related Questions

- Univ-Phys - One car has twice the mass of a second car, but only half as much ...
- Physics - Two cars are moving. The first car has twice the mass of the second ...
- Physics - Please Help - Two cars are moving. The first car has twice the mass of...
- Physics - Please Help - Two cars are moving. The first car has twice the mass of...
- Physics - Two cars are moving. The first car has twice the mass of the second ...
- Physics - Two cars are moving. The first car has twice the mass of the second ...
- Physics - Two cars are moving. The first car has twice the mass of the second ...
- physics - 7. Two cars are moving. The first car has twice the mass of the second...
- Physics (algebra bit) - I do not see how to do this problem One car has twice ...
- Physics - A car is traveling at 14 m/s. How fast would the car need to go to ...