Question

train starting from 22 kilometre per hour what is the acceleration

Answer 1

initial speed = 0

time taken = 5 min = 300 s

let final speed = v

then,

use kinematics equation ,

v = u + at

= 0 + 0.2 × 300 = 60 m/s

and distance travelled = S ( let )

use formula ,

S = ut + 1/2at²

= 0 + 1/2 × 0.2 × (300)²

=0.1 × 90000

=9000 m

= 9 km