Advertisements
Advertisements
प्रश्न
What do you mean by dynamic and static equilibrium? Give one example of each.
Advertisements
उत्तर
When the body remains in the state of rest under the influence of applied forces, it is in static equilibrium and if it remains in the state of uniform motion, it is in dynamic equilibrium.
For example: In a beam balance when the beam is balanced in the horizontal position, the clockwise and anti-clockwise moments balance each other and the beam has no rotational motion i.e., it is in static equilibrium.
A body moving with uniform velocity in a straight line over a frictionless surface is in dynamic equilibrium.
APPEARS IN
संबंधित प्रश्न
Give scientific reason for the following:
When a man climbs a slope he bends forward.
A faulty balance of unequal arms and pans of unequal weights is used to find the true weight of a metal. By double weighing the weights are found to be 1210 g and 1000 g. Calculate the true weight of the metal.
In equilibrium algebraic sum of moments of all forces about the point of rotation is ______.
Explain why It is easier to knock down a boy who is standing on one foot than one who is standing on two.
Explain when we carry weight, on one hand, we bend on the other side.
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.
Explain the types of stability with suitable examples.
Give one example of static equilibrium.
Give one example of dynamic equilibrium.
