A ball is gently dropped from a height of 20m. If its velocity increases uniformly at the rate of 10m/s2 then with what velocity will it strike the ground? After what time will it strike the ground?
Initial velocity, u = 0 (dropped gently); Acceleration, a = 10 m/s2
Height, s = 20 m; Final velocity, v =? And Time taken, t =?
Use third equation of motion:
