If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

U=32km/hr

v=54km/hr

t=8s

u = 32*1000/3600 = 80/9 m/s

v = 54*1000/3600 = 15 m/s

acc = change in velocity / time taken

acc = final velocity - initial velocity / time taken

acc = 15-80/9 m/s / 8s

acc = 55/72 m/s