________ gives the speed of the vehicle every instant in km/h. Fill in the blank.
A vehicle is accelerating on a staright road.Its velocity at any instant is 30 km h−1,after 2 s, it is 33.6 km h−1 and after further 2 s, it is 37.2 km h−1. Find the acceleration of vehicle in m s−2. Is the accleration uniform?
The diameter of the wheel of a vehicle is 5m. It makes one revolution in 9 seconds. What is speed of the vehicle in km/h?