A train whose weight is 20kN moves at the rate of 60km/hr. After brakes are applied, it is brought to rest at 500m. What is the force exerted, assuming it to be uniform?

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 Given:

Weight of the train:

 

Speed of the train:
 

Stopping distance:
 

Write the equation of acceleration:
 

Write the equation of the breaking force:
 
Thus, the breaking force is 0.567 kN.

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