Question

Who can solve this-
A car of 1000kg mass was travelling at a velocity of 30m/s, applies brakes and stops after covering 50m. Find the force exerted by brakes on it. Find the work done by brakes.​

Answer 1

Answer:

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Explanation:

Mass= 1000

Initial velocity= u= 30

Final velocity= v= 0

Distance= s= 50

v²= u²+ 2as

0²= 30² + 2 a 50

-900= 100a

a= -9

F= ma

F= 1000 x -9

F= -9000N

W= Fs

W= -9000 x 50

= -450 KJ

Answer 2

Explanation:

here is your answer mate