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A rod of length 1m rotates about the z-a...

A rod of length 1m rotates about the z-axis passing through the point O in the xy-plane with an angular velocity of `omega= 10 (rad//s) + 5 (rad//s^(2))` , in the counter clockwise direction, and O is at rest the velocity and acceleration of point A , at t=0 are

A

`-10 hat j m//s` and `(5 hatj -100 hati)m//s^(2)`

B

`10 hat j m//s` and `(5 hatj -100 hati)m//s^(2)`

C

`-10 hat k m//s` and `(5 hatk-100 hati)m//s^(2)`

D

`-10 hat j m//s` and `(-5 hatj + 100 hati)m//s^(2)`

Text Solution

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The correct Answer is:
D
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