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Byju's Answer

Standard XII

Physics

Instantaneous Axis of Rotation

A weightless ...

Question

A weightless rod of length $2 l$ carries two equal masses $^{'} m^{'}$ , one secured at lower end $A$ and the other at the middle of the rod a $B$ . The rod can rotate in vertical plane about a fixed horizontal axis passing through $C$ . What horizontally velocity must be imparted to the mass at $A$ so that it just completes the vertical circle.

\sqrt{\frac{48 g l}{5}}

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\sqrt{\frac{64 g l}{5}}

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\sqrt{\frac{72 g l}{5}}

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\sqrt{\frac{120 g l}{5}}

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Solution

The correct option is A $\sqrt{\frac{48 g l}{5}}$

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Similar questions

Q. A weightless rod of length

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and the other at the middle of the rod at

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Q. A weightless rod of length 2l carries two equal masses 'm', one secured at lower end A and the other at the middle of the rod at B. The rod can rotate in verticle plane about a fixed horizontal axis passing through C. What horizontal velocity must be imparted to the mass at A so that it just completes the vertical circle.

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The correct option is A √48gl5

The correct option is A $\sqrt{\frac{48 g l}{5}}$