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प्रश्न
State the condition when a body is in dynamic equilibrium.
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उत्तर
When a body remains in the same state of motion (translational or rotational), under the influence of the applied forces the body is said to be in dynamic equilibrium.
संबंधित प्रश्न
State the principle of moments. Give one device as an application of it
A uniform meter scale is in equilibrium as shown in the diagram :
(i) Calculate the weight of the meter scale.
(ii) Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark ?
F is shifted towards 0 cm
or
F is shifted towards 100 cm
Give scientific reason for the following:
While climbing a hill you will try to bend your body forward.
Explain when we carry weight, on one hand, we bend on the other side.
What is the weight of a body placed at the centre of the earth?
State two conditions when the work done by a force acting on a body is zero.
One end of a spring is kept fixed while the other end is stretched by a force as shown in the diagram.
(i) Copy the diagram and mark on it the direction of the restoring force.
(ii) Name one instrument which works on the above principle.
A ball is placed on a compressed spring. When the spring is released, the ball is observed to fly away.
(i) What form of energy does the compressed spring possess?
(ii) Why does the ball fly away?
When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides ______ force necessary for circular motion.
Give one example of static equilibrium.
