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प्रश्न
A brass ball is hanging from a stiff cotton thread. Draw a neat labeled diagram showing the forces acting on the brass ball and cotton thread
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उत्तर
Forces acting on the brass ball and thread:
Tension acts on the thread in the upward direction, while weight mg of the ball acts downwards
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संबंधित प्रश्न
Thrust is the ............ force acting on a surface.
State the S.I. unit of moment of force.
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.
State one way to decrease the moment of a given force about a given axis of rotation.
What is thrust?
Two forces each of magnitude 10 N act vertically upwards and downwards respectively at the two ends A and B of a uniform rod of length 4 m which is pivoted at its midpoint O as shown in the figure. Determine the magnitude of the resultant moment of forces about the pivot O.
Classify the following amongst contact and non-contact forces.
normal reaction force,
(i) What do you understand by the term couple of forces?
(ii) Calculate the moment of a couple shown in fig.
State the units of moment of force.
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.
