Question

What is a freely falling body? Write equations of motion for a freely falling body.

Answer 1

Freely falling body:

A body falling towards the center of the earth under the influence of a single force only, which is the gravitational pull of the earth, is said to be a freely falling body.

Equations of motion for a freely falling body are-

$$\begin{gathered} v=u+gt \\ h=ut+\frac{1}{2}g{t}^2 \\ {v}^2-u^2=2gh \end{gathered}$$

Where, $v,u,g,h,$and $t$ are final velocity, initial velocity, acceleration due to gravity, height above the surface of the earth, and time taken respectively.