Circular MotionHardBloom L3
Question
A particle A moves along a circle of radius R = 50 cm so that its radius vector r relative to the point O (figure) rotates with the constant angular velocity ω = 0.40 rad/s. Then modulus of the velocity of the particle, and the modulus of its total acceleration will be
Options
A.v= 0.4 m/s, a = 0.4 m/s2
B.
v = 0.32 m/s, a = 0.32 m/s2
C.v = 0.32 m/s, a = 0.4 m/s2
D.v = 0.4 m/s, a = 0.32 m/s2
Solution
Sol. About centre of circle :
ωC = 2ω = 0.8 rad/sec
v = ωC·R = 0.4 m/s
aC = ωC2R = 0.32 m/sec
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