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प्रश्न
Where will you weigh more: at the centre of the earth or at the surface of the earth?
उत्तर
We will weigh more on the surface of the earth.
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संबंधित प्रश्न
What happens to the force between two objects, if the masses of both objects are doubled?
Inside a uniform spherical shell
(a) the gravitational potential is zero
(b) the gravitational field is zero
(c) the gravitational potential is same everywhere
(d) the gravitational field is same everywhere
The gravitational field in a region is given by \[E = \left( 2 \overrightarrow{i} + 3 \overrightarrow{j} \right) N {kg}^{- 1}\] . Show that no work is done by the gravitational field when a particle is moved on the line 3y + 2x = 5.
[Hint : If a line y = mx + c makes angle θ with the X-axis, m = tan θ.]
Explain the following:
People often shake the branches of a tree for getting down its fruits.
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the total time of journey of the ball .
The force of attraction between any two material objects is called __________.
A ball is thrown up with a speed of 4.9 ms-1.
Calculate the time it takes to reach this height.
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.
For the weight of body of mass 5 kg to be zero on equator of the earth, angular velocity of the earth must be (The radius of earth = 6400 km, acceleration due to gravity = 10 m/s2).
Four identical particles of equal masses 1 kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be ______.
