A moving train is brought to rest within 20sec by applying brakes .find the initial velocity,if the retardation due to breaks is 1.5m/s2.
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v= 0
t= 20s
retardation = 1.5m/s^2
retardation = v-u/t
1.5 = 0-u /20
1.5 × 20= u
3m/s = u = initial velocity
t= 20s
retardation = 1.5m/s^2
retardation = v-u/t
1.5 = 0-u /20
1.5 × 20= u
3m/s = u = initial velocity
Tomboyish44:
how is retardatioon 1.5 ?
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