Question

universal law of gravitationa with clear explaination

Answer 1

hey mate ur ans

Universal law of gravitation is one of the law given by Sir Issac Newton

it states that every two body in this universe attracts each other with a force called force of gravitation which is

directly proportional to mass of bodies

inversely proportional to square of distance between them

DERIVATION

SUPPOSE THERE ARE TWO BODIES
" A "And "B"
having mass
"M1 "AND "M2" SEPARATED BY DISTANCE "D" AND "F " IS FORCE OF ATTRACTION

so

F § M1 *M2. | §= directly proportional

AND

F ¤ 1/ D^2. | ¤ = inversely proportional d^2=SQUARE oF DISTANCE

F=( Gm1 *m2)/d2

where G = gravitational constant value= 6.66*10raise to power -11

Answer 2

According to Universal law of Gravitation:-
Every mass in this universe attracts every other mass with a force which is directly proportional to the product of two masses and inversely proportional to the square of the distance between them.

Let masses (M) and (m) of two objects are distance (d) apart, then force of attraction (F) between them

F ∝ M×m
F ∝ 1/d2
F ∝ Mm/d2
F = (GMm)/d2

where,
G is a constant and is known as Gravitational constant.
Value of G = 6.67×10-11 Nm2/kg2
G is called universal gravitational constant.

→ If unit of F is in Newton, m is in kg, d is in metre, then unit of G can be calculated as :
G = (F×d2)/Mm, therefor unit will be Nm2/kg2


The diagram isn't good enough but hope it helps:))