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प्रश्न
Give two examples of a couple's actions in our daily life.
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उत्तर
For example, turning a key in a lock and turning a steering wheel.
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संबंधित प्रश्न
A half metre rod is pivoted at the centre with two weights of 20gf and 12gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below.
1) Which of the two forces acting on the rigid rod causes clockwise moment?
2) Is the rod in equilibrium?
3) The direction of 20 kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?
The steering wheel of a vehicle is of large diameter.
A wheel of diameter 2 m can be rotated about an axis passing through its center by a moment of force equal to 2.0 Nm. What minimum force must be applied on its rim?
State the condition when the change in the momentum of a body depends only on the change in its velocity.
Name and define the S.I. and C.G.S. units of force. How are they related?
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
Classify the following amongst contact and non-contact forces.
gravitation force
Fig. shows a uniform meter scale weighing 100 N pivoted at its centre. Two weights of 500 N and 300 N are hung from the ruler as shown in fig.
(i) Calculate total clockwise and anticlockwise moments.
(ii) Calculate difference in clockwise moment and anticlockwise moment.
(iii) Calculate the distance from O where a 100 N weight should be suspended to balance the meter scale.
How does the distance of separation between two bodies affect the magnitude of the non-contact force between them?
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?
