Advertisements
Advertisements
प्रश्न
Calculate the magnitude of the force of a couple, when the arm of the couple is 63 cm and the moment of the couple is 21 Nm.
Advertisements
उत्तर
Moment of couple = F × Arm of couple
21 Nm = F × 63 cm
21 Nm = F × 0.63 m
F =`21/0.63` = 33.33 N.
संबंधित प्रश्न
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
Thrust is the ............ force acting on a surface.
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.
On what factors does the effect of thrust on a surface depend?
State Newton's third law of motion.
A uniform metre rule of weight 10gf is pivoted at its 0 mark.
What moment of force depresses the rule?
The diagram shows a uniform metre rule weighing 100gf, pivoted at its centre O. Two weights 150gf and 250gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm. Calculate :
the difference of anticlockwise and clockwise moment
Under what condition will a set of gears produce a gain in torque.
The diagram in Fig shows two forces F1 = 5 N and F2 = 3 N acting at points A and B respectively of a rod pivoted at a point O, such that OA = 2 m and OB = 4 m.
Calculate:
- the moment of force F1 about O.
- the moment of force F2 about O.
- total moment of the two forces about O.
