Question

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

208000 J

20800000 J

104000 J

10400000 J

​

Answer 1

Answer:

208000 j

Explanation:

So, in order to bring the object to rest i.e its same magnitude of energy is required so, as the final final energy comes to zero.

v=60km/hr=16.66m/s

So, magnitude of work that needs to be done =

2

1

×m×v

2

Hence, work required to stop the car =

2

1

×1500×16.66

2

=208166.7J