Question

Explain earth's gravitational acceleration.

Answer 1

Earth exerts an accelerative force on any object on its surface by obeying the Newton's Law Of Gravitation.

Earth's Gravitational Acceleration is a vector directed radially inwards towards the centre of the Earth.

Let's derive the Formula for Earth's Gravitational Acceleration :

Let mass of object be m , mass of earth be M and radius of Earth be r.

Gravitational Acceleration be F :

$F = \dfrac{GMm}{ {r}^{2} }$

Therefore Gravitational acceleration will be F/m

$\boxed{acc. = g = \dfrac{F}{m} = \dfrac{GM}{ {r}^{2} } }$

Answer 2

Answer:

Explanation:

Earth's gravitational acceleration;

Any acceleration produced by gravitational force of attraction is called gravitational acceleration

→ The accelaration due to gravity on earth is generally 9.8m/s^2.

Formula;

F=GMm/r^2

√ F is gravitational force- Newton

√ G is universal gravitational constant - (Nm^2)/(kg^2)

√ M is mass of body 1 - kg

√ m is mass of second body- kg

√ R is distance b/w the two objects - m