a train takes 90seconds to cross a platform with speed of 60kms/hr length of the train is 450metres find the length of platform
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speed = 60 kmph = 60×5/18 = 100/3 m/s
time = 90s
distance travelled= 100/3 × 90 = 3000m
train's length= 450m
length of platform= 3000-450 = 2550m
time = 90s
distance travelled= 100/3 × 90 = 3000m
train's length= 450m
length of platform= 3000-450 = 2550m
TPS:
answer is 1050... i did a mistake...
speed = 60 kmph = 50/3 m/s
Answered by
1
Since Speed = Distance / Time
= 60km/ h = (Length of train + Length of platform) / 90 sec.
= 60 * 1000/ 60*60 m/ s = 450 m + Length of platform / 90
= 100/6 m = 450+ Length of platform / 90
= 100*90/6 = 450 + Length of platform
= 1500 = 450 + Length of platform
= 1500- 450 m = Length of platform
= 1050 m.
Hope it's helpful to u.
= 60km/ h = (Length of train + Length of platform) / 90 sec.
= 60 * 1000/ 60*60 m/ s = 450 m + Length of platform / 90
= 100/6 m = 450+ Length of platform / 90
= 100*90/6 = 450 + Length of platform
= 1500 = 450 + Length of platform
= 1500- 450 m = Length of platform
= 1050 m.
Hope it's helpful to u.
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