Question

what do u mean by free fall? explain​

Answer 1

${\large{\mathscr{\underline{\red{ Question:-}}}}}$

What do you mean free fall?

${\large{\mathscr{\underline{\red{ Answer:-}}}}}$

Earth's gravity attracts each object to its center.When an object is dropped from a certain height,under the influence of gravitational force it begins to fall to the surface of earth.Such am object movement is called free fall.

Acceleration due to gravitation (g)

Symbol $\red{\longrightarrow}$g

SI unit $\red{\longrightarrow}$ ${ms}^{-2}$

Formula $\red{\longrightarrow}$g=GM/r²

Dimensional formula $\red{\longrightarrow}$${M}^{0} {L}^{1} {T}^{-2}$

Answer 2

Question:

What is meant by free fall??

Answer:

In Newtonian physics, free fall is defined as the motion of an object where gravity is the only force acting upon it.  A skydiver may be pulled towards earth by gravity, but they are also affected by air resistance, a force opposing their downward movement.

Formula:

$h = \frac{1}{2} gt^{2}$

$v^{2} = 2gh$

$v = gt$

SI units:

Its unit in the International System (SI) is the second (s)