Which of the following could not be a unit of acceleration ?
(a) km/s2 (b) cm/s2 (c) km/s (d) m/s2
Km /s cannot be the unit of acceleration. The unit of acceleration is the metre per second squared m/s2.
When a body moving with a speed of 20 m/s. stops in 20 seconds, what is the acceleration?
A Porsche can go from 0 km/hr to 100 km/hr in 10 sec. What is its average acceleration?
A helicopter is moving at a speed of 56 km/h. One second later it is moving at 58 km/h. What is its acceleration?