# WORK put in WORK

Listen to this.

lets talk about work.

Work is not only equal to force times distance, but is also equivalent to the change in kinetic energy.

For instance, if a car of mass m is traveling 10 m/s and comes to a stop in 15 m, its very easy to find the work.

Work=Change in Ke=((1/2)m(10)^2)- ((1/2)m(0)^2)=50m

This means that the breaks in this car must do 50m j of work to stop the car.

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