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Question
Solution
The turning effect produced by a force on a rigid body about a point, pivot or fulcrum is called the moment of force or torque. It is measured by the product of force and the perpendicular distance of the pivot from the line of action of force.
Moment of a force = Force x perpendicular distance of the pivot from the force.
Its SI unit is newton-metre (Nm).
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SI. unit of moment of force is
State the effect of force F in of the following diagram.
State the S.I. unit of moment of force.
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?.
Name of S.I. unit of momentum.
A body is acted upon by two forces of magnitude F but in opposite directions. State the effect of the force if both forces act at the same point of the body.
The moment of a force about axis depends ______.
The figure shows two forces each of magnitude 10 N acting at the point A and B at a separation of 50 cm, in opposite directions. Calculate the resultant moment of two forces about the point.
- A,
- B and
- O situated exactly at the middle of the two forces.
