Question

A train that starts from rest attains a velocity of 60 km/h
in 4 minutes of acceleration is uniform find
(a) the acceleration
and (b) the distance toavelled by the toain for at taining.
the velocity.​

Answer 1

Explanation:

(a)

u = 0, v = 60 km/hr = 60 * 5/18 = 300/18 m/s, t = 4 min = 240sec.

a = (v - u)/t

  = (300/18 - 0)/240

 = (5/72) m/s²

(b)

v² - u² = 2as

=> (300/18)² - 0 = 2 * (5/72) * s

=> s = 2000

Hope it helps!