Physics, asked by neetubayla, 22 days ago

a 1000 kg car is moving at a speed of 72km/h breaks are applied for 4 sec which reduces speed to 18km/h calculate the work done by breaks?

Answers

Answered by tneerajsaikumar

1

Answer:

41

Explanation:

Work=Force×displacement

Force when brakes applied= 18km/hr

displacement = ?

Velocity=displacement/time

displacement=velocity/time

=18÷4

=4.5km

WORK DONE = 18×4.5

=41.

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