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प्रश्न
Under what condition will a set of gears produce a gain in torque.
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उत्तर
When the number of teeth in driven gear is more than the number of teeth in driving gear.
संबंधित प्रश्न
Less force is needed when applied at a farther distance from the pivoted point.
How does the effect of force differ when it is applied on a rigid body?
How does the effect of force differ when it is applied on a non-rigid body?
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 Newton's first law of motion. Why is it called the law of inertia?
Classify the following amongst contact and non-contact forces.
gravitation force
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
A uniform metre scale is balanced at a 40 cm mark when weights of 20 gf and 5 gf are suspended at 5 cm mark and 75 cm mark respectively. Calculate the weight of metre scale.
Calculate the length of arm of couple, if a force of 13 N produces a moment of couple of 14.3 Nm.
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.
