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प्रश्न
It is easier to open the door by pushing it at its free end.
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उत्तर
Moment of force is a product of force and perpendicular distance.
Torque is defined as Force x distance. Larger the distance from the fixed axis or hinge, larger the torque and hence it is easier to open the door
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संबंधित प्रश्न
Moment of force = force × perpendicular distance of force – from the pivoted point.
How does the effect of force differ when it is applied on a rigid body?
In Fig. a force F is applied in a direction passing through the pivoted point O of the body. Will the body rotate? Give reason to support your answer.
A tall building has wide foundations.
State Newton's Second law of motion. Under what conditon does it take the form F = ma?
Write the expression for calculating the moment of force about a given an axis.
What do you understand by the clockwise and anticlockwise moment of force? When is it taken positive?
A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.
A wheel of diameter 2 m is shown in the figure with the axle at O. A force F = 2 N is applied at B in the direction shown in the figure. Calculate the moment of force about
- the centre O, and
- the point A.
What is the work done when no net force is applied on the body?
