If a particle completes one round around a circular track in 60 seconds. Considering that the radius of the track is 420 m and particle is moving with constant speed, calculate:
1. Distance and displacement after 60 seconds.
2. Distance and displacement after 15 seconds.
3. The speed of the object.
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Answer:
Explanation:
(1)distance of circular park =2*22/7*420m so distance after 60s is 2640m
=2*1320
=2640m
Displacement is defined as the change in position of an object
displacement=0m
(2) distance after 15 s =2640m/4=660m displacement after 15s=660m
(3)speed=660m/15s or 2640m/60s
=44m/s
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