Question

A bus decrease it's speed from 70km/ h to 50 km/h in 5 seconds . Find its acceleration

Answer 1

hiii!!!

here's ur answer...

given :-

u = 70km/h

in m/s = 70 × 5/18 = 350/18 = 19.44ms^-1

v = 50km/h

in m/s = 50 × 5/18 = 300/18 = 16.66ms^-1

acceleration = v - u/t

= ( 16.66 - 19.44 ) / 5

= -2.78/5

= -0.556ms^2

hope this helps..!!