A train travelling at a speed of 90km h

Asked by admin @ 17/08/2021 in Physics viewed by 323 People

a train travelling at a speed of 90 km per hour. the brakes are applied so as to produce a uniform acceleration of minus 0.5 m/s² find how far does the train go before it is brought to rest.

Answered by admin @ 17/08/2021

Given
u = 90km/hr = 25m/s²
a = -0.5 m/s²
v= 0m/s²
S=?

so by using equation of motion

v²-u²=2as
s=(0²-25²)/(2x-0.5)
s=625m

So, the train will go 625m more

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