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A rod of length 13 metres. has its end ...

A rod of length 13 metres. has its end P on the x-axis and the other end Q on the y-axis. If P moves along the x -axis with a speed of 12 m/sec, then the speed of the other end Q when it is 12 metres from the origin is

A

(-3 m/sec)

B

5 m/sec

C

(-5 m/sec)

D

(-4 m/sec)

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The correct Answer is:
C
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