Advertisements
Advertisements
प्रश्न
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.
विकल्प
If both the assertion and the reason are true and the reason is the correct explanation of assertion.
If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
Assertion is true, but the reason is false.
Assertion is false, but the reason is true.
Advertisements
उत्तर
If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
APPEARS IN
संबंधित प्रश्न
An effort is applied on the bigger wheel of a gear having 32 teeth. It is used to turn a wheel of 8 teeth. Where it is used.
Moment of force =............... × distance of force from the point of turning.
Write the expression for the moment of force about a given axis of rotation.
Calculate the acceleration produced in a body of mass 50 g when acted upon by a force of 20 N.
Classify the following amongst contact and non-contact forces.
normal reaction force,
Define the moment of force.
(i) What do you understand by the term couple of forces?
(ii) Calculate the moment of a couple shown in fig.
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?
Calculate the minimum distance between point of application of force and axis of rotation of a rigid body, if a force 125 N produces a moment of force of 25.75 Nm.
