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प्रश्न
State the units of moment of force.
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उत्तर
In the CGS system, the unit of moment of a force is Dyne-cm and in the MKS system, the unit of moment of a force is Newton-metre. The gravitational units in CGS and MKS system of measurement are gf cm and kg m respectively.
संबंधित प्रश्न
State Newton's first law of motion. Why is it called the law of inertia?
Is moment of force a scalar or a vector?
State two factor on which moment of force about a point depends.
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.
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.
Classify the following amongst contact and non-contact forces.
gravitation force
Write the expression for the moment of force about a given axis.
A jack screw is provided with a long arm. Explain why?
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A nut is opened by a wrench of length 25 cm. If the least force required is 10 N, find the moment of force needed to turn the nut.
