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Ch. 6, 4 The first car has twice the mass of a second car, but only...

Ch. 6, 4

The first car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 10 m/s , they then have the same kinetic energy.

Part A

What were the original speeds of the two cars?

Express your answers using two significant figures separated by a comma.

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