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प्रश्न
What does a force do in the following case?
You pull the skin of your arm
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उत्तर
Force changes the shape of skin.
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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?
Which of the Kepler’s laws of planetary motion led Newton to establish the inverse-square rule for gravitational force between two bodies ?
State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.
Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?
At noon, the sun and the earth pull the objects on the earth's surface in opposite directions. At midnight, the sun and the earth pull these objects in same direction. Is the weight of an object, as measured by a spring balance on the earth's surface, more at midnight as compared to its weight at noon?
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.
Distinguish between gravity and gravitation
The force of attraction between any two material objects is called __________.
Does the force of the earth's gravitation affect the motion of the moon? Explain your answer with reasons.
