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प्रश्न
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.
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उत्तर
Length r = 10 cm = 0.1 m
F = 5N
Moment of force = F x r = 5 x 0.1 = 0.5 Nm
संबंधित प्रश्न
State two effects of a force when applied on a body.
A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
Name and define the S.I. and C.G.S. units of force. How are they related?
State two factor on which moment of force about a point depends.
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Give an example for each of the following uses of a machine:
to change the point of application of force
State two factors affecting the turning effect of a force.
The perpendicular distance between the point of application of force and turning point is 1.75 m when a force of 80 N acts on a rigid body. Calculate the moment of force.
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Assertion & Reasoning
- Assertion: The sum of the clockwise moments is equal to the sum of the anticlockwise moments.
- Reason: The principle of conservation of momentum is valid if the external force on the system is zero.
