Question

A body moving with uniform acceleration has initial velocity 45 kilometre per hour and acceleration 20 cm per second square find its velocity after 25 seconds​

Answer 1

Answer:

63km/hr

Explanation:

given the initial velocity u=45km/hr=45×5/18m/s

given acceleration a=20cm/s²=0.2m/s²

since v=u+at=12.5+(0.2)(25)

therefore v=12.5+5

v=17.5m/s

or 63km/hr