Advertisements
Advertisements
Question
What is meant by equilibrium and state the conditions of equilibrium of a body?
Advertisements
Solution
When a number of forces acting on a body produce no change in its state of rest or of uniform motion the body is said to be in equilibrium.
The two conditions of equilibrium of a body:
(i) The resultant of all the forces acting on the body should be equal to zero.
(ii) The resultant moment of all the forces acting on the body about a point should be zero.
RELATED QUESTIONS
What do you mean by an equilibrium of a body?
State the principle of moments. A meter scale is pivoted at 30 cm mark and it is in equilibrium when a mass of 40 g is suspended from 10 cm mark. Calculate the mass of the ruler.
What makes a balance faulty?
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
Explain when we carry weight, on one hand, we bend on the other side.
What do you mean by dynamic and static equilibrium? Give one example of each.
A boy of mass 30 kg is fitting at a distance of 2 m from the middle of a see-saw. Where should a boy of mass 40 kg sit so as to balance the see-saw?
Give one example of static equilibrium.
Give one example of dynamic equilibrium.
