Freefall as the term says, is a body falling freely because of the gravitational pull of our earth.
Imagine a body with velocity (v) is falling freely from a height (h) for time (t) seconds because of gravity (g).
Free Fall Formulas are articulated as follows:
h = (1/2) gt2
v2 = 2gh
v = gt
Freefall Related Solved Examples
Underneath are given questions on free fall which may be useful for you.
Problem 1: Calculate the body height if it has a mass of 2 kg and after 7 seconds it reaches the ground?
Given: Height h =?
Time t = 7s
We all are acquainted with the fact that free fall is independent of mass.
Hence, it is given as
h = 0.5 × 9.8 × (7)2
h = 240.1 m
Problem 2: The cotton falls after 3 s and iron falls after 5 s. Which is moving with higher velocity?
The Velocity in free fall is autonomous of mass.
V (Velocity of iron) = gt = 9.8 m/s2 × 5s = 49 m/s
V (Velocity of cotton) = gt = 9.8 m/s2 × 3s = 29.4 m/s.
The Velocity of iron is more than cotton.