A particle is located at (4m,5m) and moving with →v=(5^i−4^j)m/s. Find the magnitude of angular velocity about origin at this instant.
A
2rad/s
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B
1rad/s
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C
0.5rad/s
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D
25rad/s
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Solution
The correct option is B1rad/s It is given that position vector →r=4^i+5^jm, and the velocity vector →v=5^i−4^jm/s Here →v.→r=(5^i−4^j).(4^i+5^j)=0 ⇒→vand→r are perpendicular.