A falling stone takes 0.31 seconds to travel past a window 2.2 meters tall. From what height above the top of the window did the stone fall

The height above the top of the window the stone fell is 2.57 m

Explanation:

Given;

time of stone fall, t = 0.31 s

distance the stone travel, y = 2.2m

The velocity of the stone when it travel past the window is given by;

v = y/t

v = 2.2 m / 0.31 s

v = 7.097 m/s

The height of fall with this final velocity is given by;

v² = u² + 2gh

where;

u is the initial velocity of the stone = 0

h is the height of fall

v² = 2gh

h = v² / 2g

h = (7.097² ) / (2 x 9.8)

h = 2.57 m

Therefore, the height above the top of the window the stone fell is 2.57 m

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force