Question

a train starting from Railway Station at speed of 40km/h .acceleration is 0.9m/s2 in 10min. find final velocity ​

Answer 1

given :-

initial velocity = u = 50km/h

in m/s = 50 × 5/18 = 13.88m/s (approximately)

acceleration = a = 0.9m/s²

time = t = 10 mins

final velocity = v = ?

by equation of motion we get,

v = u + at

➡ v = 13.88 + (0.9 × 10)

➡ v = 13.88 + 9

➡ v = 22.88m/s

hence the final velocity is 22.88m/s

Answer 2

Answer:59m/s.

Explanation:

Acceleration=0. 9m/s^2

Time=10sec.

Initial velocity=50m/s

Final Velocity=?

a = V - u / t

V = u + at

V = 50 + 0.9 × 10

V = 50 + 9

V = 59m/s