A train accelerated from10km/ hr to40 km/ hr in 2 min .how much distance does it cover in this period assume the teacks are straight
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Answer:
initial velocity,u=10km/h
final velocity,v=40km/h
time,t=2min=1/30h
since , S=ut+1/2at^2
=10×1/30+(1/2)×(v-u/2)×(1/30)^2
=1/3+(1/2)×(30/2)×(1/900)
=1/3+1/120
=41/102 km/h^2
Explanation:
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