define the work done by a constant force. write its SI unit and define this unit .a3000kg truck moving at a speed of 90m/s stops after covering some distance. the force appied by brakes is 27000N . compute the distance covered and wor done by this force .
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The work done is defined as the product of the force applied on the body and distance moved by the body.
Joule (J) is the SI unit of work. One joule is the amount of work done by the body, if force of one newton makes it move to a distance of one metre.
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