Question

what is the exact definition for gravitational force which suites the board of 12th std.??

Answer 1

Gravitation is a force of attraction between objects. It is a vector quantity that obeys the inverse square law. If two mass particles of masses M and m are d meters apart, then the magnitude of the force F = -G*M*m/r^2, where G, the universal constant of gravitation, is 6.67*10^(-11) N*m^2/kg^2. The minus sign has been inserted to indicate force of attraction.

Answer 2

The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface. The more remote the body the less the gravity. The gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.

m1*m2
F = G --------
r^2
where:
F is the force between the masses,
G is the gravitational constant,
m1 is the first mass,
m2 is the second mass, and
r is the distance between the masses.

Assuming SI units, F is measured in newtons (N), m1 and m2 in kilograms (kg), r in meters (m), and the constant G is approximately equal to 6.674×10−11
N m2 kg−2.

Answer 3

lavitation and gravitation

Answer 4

Gravitation Force is a natural phenomenon by which physical bodies attract with a force proportional to their mass. In everyday life, gravitation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped.