A train is travelling at a speed of 90 km h-1. Brakes are applied so as to produce a uniform acceleration of - 0.5 m s2. Find how far the train will go before it is brought to rest.
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Brakes are applied so as to produce a uniform acceleration of – 0.5 m / s 2 . Find how far the train will go before it is brought to rest. ∴ The train will travel 625 meters before it is brought to rest.
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Given
u=90km/hr
v=0
a = 0.5
convert km/hr into m /s
90 multiply 5/8 =25m/s
v^2 =u^2+2as
Using the equation
0 = (25)^2 +2 (-0.5) (s)
0=625 -(s)
-s =625
Distance travelled by train befor stopping =625m
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