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» Rotational Motion » Moment of Inertia
Two rings of the same mass of 5 kg and radius 2 m are placed such that their centers are at a common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the centre and perpendicular to the plane of one of the rings is –
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» Rotational Motion » Concepts of Rotational Motion
A particle moves on a circle of radius such that the distance covered on the circle varies with time according to the law, . What is the total acceleration of the particle at .
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» Rotational Motion » Torque
A force newton acts on a particle whose position vector with respect to origin O is Find the magnitude and direction of the torque.
Choice (4) | Response | |
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a. | Magnitude 21 Nm, direction along the negative z – axis |
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b. | Magnitude 31 Nm, direction along the positive z – axis |
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c. | Magnitude 21 Nm, direction along the positive z – axis |
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d. | Magnitude 31 Nm, direction along the negative z – axis |
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