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.
संबंधित प्रश्न
Define equilibrium.
The figure shows a uniform metre rule placed on a fulcrum at its mid-point O and having a weight 40 gf at the 10 cm mark and a weight of 20 gf at the 90 cm mark.
- Is the metre rule in equilibrium? If not how will the rule turn?
- How can the rule be brought in equilibrium by using an additional weight of 40 gf?
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
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?
State the principle of moments.
What is meant by equilibrium and state the conditions of equilibrium of a body?
Explain the concept which is used in the continuous movement of the Thanjavur doll?
When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides ______ force necessary for circular motion.
A non uniform beam of weight 120 N pivoted at one end is shown in the diagram below. Calculate the value of F to keep the beam in equilibrium.
