4. A metro train accelerates uniformly from rest to a velocity of 180 km/hr in half
minute,find the distance covered by the train in this time?
Answers
Answered by
3
Explanation:
we should convert the km/hr to minute per second..
and then divide by 2..
Answered by
14
initial velocity = 0m/s
final velocity = 180km/hr= 50m/s
time = 1/2 min = 30seconds
let S distance be covered
now,
f
a = (v- u)/ t
a = 50/30 = 5/3m/s²
now, S = ut + 1/2at²
s = 0 + 1/2 × 5/3 × 900 = 5/6× 900 = 750metres. (answer)
final velocity = 180km/hr= 50m/s
time = 1/2 min = 30seconds
let S distance be covered
now,
f
a = (v- u)/ t
a = 50/30 = 5/3m/s²
now, S = ut + 1/2at²
s = 0 + 1/2 × 5/3 × 900 = 5/6× 900 = 750metres. (answer)
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