Question

a bus accelerates uniformly from 54km/h to 72 km/h in 10 seconds calculate 1.acceleration in m/s 2 2.distance covered by the bus in meters

Answer 1

u=15m/s.
v=20m/s.
t=10s
a=5/10=1/2=0.5m/s2.
s=ut+1/2at2.
s=150+1/2*50
s=150+25=175.
s=175m.