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प्रश्न
What does a force do in the following case?
You twist a piece of rubber.
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उत्तर
Force produces stretching in the rubber.
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संबंधित प्रश्न
If you compare the gravitational force on the Earth due to the Sun to that due to the Moon, you would find that the Sun’s pull is greater than the Moon’s pull. (You can check this yourself using the data available in the succeeding exercises). However, the tidal effect of the Moon’s pull is greater than the tidal effect of Sun. Why?
Choose the correct alternative:
Acceleration due to gravity increases/decreases with increasing altitude.
Choose the correct alternative:
Acceleration due to gravity increases/decreases with increasing depth. (assume the earth to be a sphere of uniform density).
Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces ? Why don’t the two objects in a room move towards each other due to this force ?
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?
How will the force of gravitation between two objects change if the distance between them is:
Infinite
Name and state the action and reaction in the following case:
A person walking on the ground.
State Newton's universal law of gravitation. Express it with the mathematical form of force of gravitation?
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 ______.
