A ball is thrown vertically upward. It has a speed of 8 m/s when it reaches half of its maximum height. Find the maximum height up to which the ball rises (take g = 10 m/s2).

A 5 kg mass at rest on a frictionless table is acted upon by a constant force of 12 N. The distance travelled by it in 2 s is:

A bus starts to move from rest and acquires a velocity of 30 m/s in 10 seconds. Calculate its acceleration.