Answered: 1) An arm OA rotates around the origin… | bartleby

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1) An arm OA rotates around the origin O according to the angle 0
2
0.15t where @ is in radians and t in seconds. A collar B slides along
2
the arm such that r= 1 - 0.12 where 1 is in meters. In polar
coordinates system:
a) Determine the velocity vector of the collar at time t.
b) Compute the speed of the collar for 0 = 30°.
O
B
B
A

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