Question

4. A train starts from rest and accelerates uniformly for 5 minutes. If it attains a velocity of 90 km/s, find its acceleration.
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Answer 1

Answer:

0.3 m/s²

Explanation:

The train is starting from rest

therefore u = 0 m/s.

time t = 5 min = 300 sec

final velocity = v = 90 km/hr = 25 m/s

therefore we know,

a = (v-u) / t

a = (90-0) / 300 s

a = 90/300

a = 9/30

a= 3/10 = 0.3 m/s²

Therefore the acceleration of train = 3/10 m/s²

==> 0.3 m/s²

IF YOU THINK I WAS RIGHT THEN SURELY MARK THE ANSWER AS BRAINLIEST !

Answer 2

Answer:

Explanation:

V= u+ at

90=0+a×5

25=5a

a=25/5

a=5mls^2