Question

a motor car is moving with a velocity of 108km/h and it takes 4s to stop after brakes applied .calculate the force exerted by the brakes on the motorcycle if its mass along with passengers is 1000kg​

Answer 1

Answer:

Force=mass*acceleration

f=m×

t

v−u

f=1000×

4

0−108×

18

5

=1000×(−7.5)

∴f=−7500N

opposing force is denoted by negative sign

Explanation:

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