Question

If a car accelerates uniformly to a speed of 144 kilometre per hour in 20 seconds it covers a distance of

Answer 1

Hey!!

Answer:

400m/s

Explanation:

 speed = 144km/h

         = 144*5/18 = 40m/s

apply

v = u + at

v = 40m/s

u = 0m/s

a = ?

t = 20 s

40 = 0 + 20*a

a = 2m/s²

apply

s = ut  + at²/2

s = ?

u = 0m/s

a = 2m/s²

t = 20s

s = 0 + 2*20²/2

s = 400m

hence car covers 400 meter.

Hope it helps !!