Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h?

Asked by Vishal kumar | 2 years ago |  368

##### Solution :-

Given data:

The mass of the body = 1500 kg

Velocity v = 60 km/hr

$$= \frac{60\,\times\,100m}{3600s}$$

$$= \frac{50}{3}\,m/s$$

The work required to stop the car = kinetic energy change of the car

$$= \frac{1}{2}\,mv^2\,-\, \frac{1}{2}m(0)^2$$

$$= \frac{1}{2}\,\times\,(1500)\,\times(\frac{50}{3})^2$$

208333.3 J

Answered by Shivani Kumari | 2 years ago

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