Advertisements
Advertisements
प्रश्न
Explain the difference between g and G.
उत्तर
'g' is acceleration due to earth's gravity and 'G' is universal gravitational constant.
APPEARS IN
संबंधित प्रश्न
What is the importance of the universal law of gravitation?
Answer the following:
An astronaut inside a small space ship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity?
State Kepler’s law which is represented by the relation r3 ∝ T2.
Let V and E be the gravitational potential and gravitational field at a distance r from the centre of a uniform spherical shell. Consider the following two statements :
(A) The plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.
The mass of moon is about 0.012 times that of earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:
Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.
Name and state the action and reaction in the following case:
A person walking on the ground.
Name and state the action and reaction in the following case:
Hammering a nail.
Answer the following question.
State Newton’s law of gravitation and express it in vector form.
Solve the following problem.
Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.
