kinematic equations for uniformly accelerated motion

Kinematic equations of motion of a body

(i)  Consider a body moving with uniform acceleration ‘a’. Its initial and final velocities are denoted by ‘u’ and ‘v’ respectively. It undergoes a displacement ‘s’ in a time interval ‘t’. Its displacement in a particular nth second is S_n. The relations connecting the above kinematic quantities are called equations of motion, which are mentioned below,

 Example Problem:

A ball is thrown vertically upwards with a velocity of 20ms^-1 from the top of a multistory building. The height of the point from where the ball is thrown is 25.0m from the ground. (a) How high will the ball rise? And (b) How long will it be before the ball hits the ground? (Take g= 10ms^-2)