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Standard XII

Physics

Displacement in 2D Motion

A strip lengt...

Question

A strip length $1 m$ rotates about the Z-axis passing through the point O in the X-Y plane with a angular velocity of $10 r a d / s$ in the counterclockwise direction, and O is at rest. The velocity of point $A$ is :

10^k m / s

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- 10^j m / s

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+ 10^j m / s

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100^k m / s

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Solution

The correct option is B $- 10^j m / s$
$- \to V_{A} = - 10 \times 1 ˆ J m / s$
$= - 10 ˆ J m / s$
Hence,
option $(B)$ is correct answer.

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A strip length 1m rotates about the Z-axis passing through the point O in the X-Y plane with a angular velocity of 10rad/s in the counterclockwise direction, and O is at rest. The velocity of point A is :

The correct option is B −10^jm/s−→VA=−10×1ˆJm/s=−10ˆJm/sHence,option (B) is correct answer.

A strip length $1 m$ rotates about the Z-axis passing through the point O in the X-Y plane with a angular velocity of $10 r a d / s$ in the counterclockwise direction, and O is at rest. The velocity of point $A$ is :

The correct option is B $- 10^j m / s$
$- \to V_{A} = - 10 \times 1 ˆ J m / s$
$= - 10 ˆ J m / s$
Hence,
option $(B)$ is correct answer.