Advertisements
Advertisements
Question
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.
Advertisements
Solution
Distance = 25 cm = `25/100` = 0.25 m
Force = 10 N
Moment of force = ?
Moment of force = Force × Distance
= 10 × 0.25
= 2.5 N m
APPEARS IN
RELATED QUESTIONS
A nut is opened by a wrench of length 20 cm. If the least force required is 2N, find the moment of force needed to loosen the nut.
SI. unit of moment of force is
The hand flour grinder is provided with a handle near the rim.
What are non-contact forces? Give two example
Three forces A, B and C are acting on a rigid body which can turn about O in fig.9. If all the three forces are applied simultaneously, in which direction will the body move? Explain.
Two similar vehicles are moving with the same velocity on the road, such that one of thus is loaded and the other one is empty which of the two vehicles will require larger force to stop?
State the effects that a force can produce. Given one example of each.
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.
The diagram shows wheel O pivoted at point A. Three equal forces F1, F2 and F3 act at point B on the wheel.
- Which force will produce maximum moment about A?
- Give a reason for your answer in (a).
