Question

When breaks are applied the speed of the train decreases from 96 kmh to 48 kmh in 800 m. How much further will the train move before coming to rest ?​

Answer 1

Answer:

When brakes are applied, the speed of train decreases from 96 kph to 48 kph in 800m. How much farther will the train move before coming to a rest? From 3rd equation of motion v^2-u^2=2as from first given v=96,u=48,s=800m a=-3.84 km/h^2 from same equation now take v as 48 , u as 0 and a as got now s= 300m to stop.

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