Question

A car is travelling at 20 km/h it speed up to 60 km per hrs in 6 seconds what is its acceleration

Answer 1

first change km/hr into m/s

60km/hr=50/3 m/s

20km/hr=50/9 m/s

now using v=u+at

50/3=(50/9)+a(6)

6a=100/9

a=50/27=1.9m/s^2