Question

Train attains speed 40kmph after travelling 200m stops. Find acceleartion

Answer 1

u=0km/hr

v=40km/hr

s=0.2km

v2 = u2 + 2as

1600 = 0 + 0.4a

a = 4000 m/sec2

Answer 2

u=40km/hr

change it into m/s

40×5/18