1.

A bullet train is moving with velocity 180km/h and it takes 5 seconds to stop after brakes applied find the force exerted by brakes on the wheel if mass is 2000 kg.

Answer»

HEYA!!!


HERE IS YOUR ANSWER,


=> Speed of TRAIN = 180 km/hr = 50 m/s.

=> Time TAKEN to stop the train = 5 sec.

=> Total mass = 2000 kg.

=> Retardation = (Speed)/(time)

=> 50/5

=> 10 m/s²

Now,

=> F = m × a

=> F = 2000 × 10

=> F = 20,000 N.


HOPE IT HELPS YOU,
THANK YOU.☺️


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