Advertisements
Advertisements
Question
Distinguish between gravity and gravitation
Solution
Gravity is the force of attraction between the object and the earth whereas gravitation refers to the force of attraction that exists between any two bodies that possess mass.
APPEARS IN
RELATED QUESTIONS
The weight of an object is more at the poles than at the equator. Is it beneficial to purchase goods at equator and sell them at the pole? Does it matter whether a spring balance is used or an equal-beam balance is used?
Which of the following quantities remain constant in a planetary motion (consider elliptical orbits) as seen from the sun?
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
A tunnel is dug along a chord of the earth at a perpendicular distance R/2 from the earth's centre. The wall of the tunnel may be assumed to be frictionless. Find the force exerted by the wall on a particle of mass m when it is at a distance x from the centre of the tunnel.
A solid sphere of mass m and radius r is placed inside a hollow thin spherical shell of mass M and radius R as shown in the following figure . A particle of mass m' is placed on the line joining the two centres at a distance x from the point of contact of the sphere and the shell. Find the magnitude of the resultant gravitational force on this particle due to the sphere and the shell if (a) r < x < 2r, (b) 2r < x < 2R and (c) x > 2R.
Who stated the law of gravitation?
Where will you weigh more: at the centre of the earth or at the surface of the earth?
What does a force do in the following case?
You pull the skin of your arm
What does a force do in the following case?
You catch a kicked ball.
State Newton's law of gravitation. What is the difference between:
g and G?