what is the average speed of a cyclist takes 10 seconds to cover the distance along the curved path from P to Q of a circular track of radius 14 m.
A . 1.1 m/s
B . 2.2 m/s
C . 3.3 m/s
D . 4.4 m/s
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The tangential acceleration of the particle is
at=dtdv=4.04.0−2.0
=0.5m/s2
The angular acceleration is
α=rat=0.50.5=1rad/s2
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