Advertisements
Advertisements
Question
Where will you weigh more: at the centre of the earth or at the surface of the earth?
Solution
We will weigh more on the surface of the earth.
APPEARS IN
RELATED QUESTIONS
What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m).
State two applications of universal law of gravitation.
Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?
A person brings a mass of 1 kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2 m s −1 as it reaches A. The work done by the person on the mass is −3 J. The potential at A is
Two small bodies of masses 10 kg and 20 kg are kept a distance 1.0 m apart and released. Assuming that only mutual gravitational forces are acting, find the speeds of the particles when the separation decreases to 0.5 m.
A tunnel is dug along a diameter of the earth. Find the force on a particle of mass m placed in the tunnel at a distance x from the centre.
Show that gravity decreases at higher altitudes.
The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is _______ of the distance between them.
State Newton's universal law of gravitation. Express it with the mathematical form of force of gravitation?
Write the answer of the question with reference to laws of gravitation.
Write the value of the universal gravitational constant.
