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प्रश्न
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उत्तर
A body is said to be in equilibrium under the action of a number of forces, if the forces are not able to produce any change in the state of rest or of uniform motion or uniform rotation.
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संबंधित प्रश्न
In a beam balance, when the beam is balanced in a horizontal position, it is in ______ equilibrium.
State two condition for a body acted upon by several forces to be in equilibrium.
Give scientific reason for the following:
When a man climbs a slope he bends forward.
Give scientific reason for the following:
In a moving bus the standing passenger stands keeping both his legs apart.
The arms of a beam balance are 20 cm and 21 cm, but the pans are of equal weight. By the method of double weighing the weights are found to be 1000 g and 20 g. Find the actual weight of the body
In figure, a uniform bar of length l m is supported at its ends and loaded by a weight W kgf at its middle. In equilibrium, find the reactions R1 and R2 at the ends.
`["Hint:" "In equilibrium" "R"_1 + "R"_2 = "W" "and" "R"_1 xx l/2 = "R"_2 xx l/2]`
What is the weight of a body placed at the centre of the earth?
Give an experiment to verify the principle of moments.
Explain the types of stability with suitable examples.
What are the three types of stability of an object?
