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प्रश्न
The force of attraction between any two material objects is called __________.
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उत्तर
The force of attraction between any two material objects is called FORCE OF GRAVITATION.
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संबंधित प्रश्न
State two applications of universal law of gravitation.
Explain the following:
People often shake the branches of a tree for getting down its fruits.
Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.
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 initial velocity of the ball.
Multiple Choice Question. Select the correct option.
The mass of earth is 6 × 1024 kg and radius of earth is 6.4 × 106 m. The magnitude of force between the mass of 1 kg and the earth is:
Define one Newton. How much maximum acceleration can it produce in a mass of 1 kg?
What is meant by the equation :
`g= Gxxm/r^2`
where the symbols have their usual meanings.
The distance-time values for an object moving along straight line are given below:
| Time (s) | Distance (m) |
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 27 |
Solve the following problem.
Calculate the acceleration due to gravity at a height of 300 km from the surface of the Earth. (M = 5.98 × 1024 kg, R = 6400 km).
Shown are several curves (Figure). Explain with reason, which ones amongst them can be possible trajectories traced by a projectile (neglect air friction).
