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The linear speed of the tip of second ar...

The linear speed of the tip of second arm of a clock is v. The magnitude of change in its velocity in 30 second is ......

A

2 v

B

`(v)/(sqrt2)`

C

`sqrt2v`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
Change in velocity `Delta v = v _(2) - (-v _(1)) = v + v = 2v`
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KUMAR PRAKASHAN-MOTION IN A STRAIGHT LINE -SECTION-E
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