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A swing moving in a children's garden is...

A swing moving in a children's garden is observed to move with an angular velocity given by, `omega=a(t^2)hat(i)+b(e^-1)hat(j)`. What will be the angle between angular acceleration and angular velocity at t=1 s given that a=b=1 unit?

A

`20^@`

B

`36^@`

C

`15^@`

D

`9^@`

Text Solution

Verified by Experts

The correct Answer is:
A
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