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Question
A cyclist goes around a circular track once every 2 minutes . If the radius of a circle is 110 m calculate the speed and velocity.
A cyclist goes around a circular track once every 2 minutes . If the radius of a circle is 110 m calculate the speed and velocity.
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Solution
given :-
Radius , r = 110
time t = 2min
= 120 second
we know also
circumference or distance of circle = 2πr
⇒2×22/7×110
⇒ 691 m
∴ speed = distance / time
⇒691 m/ 120
=> 5.75 m/s
Radius , r = 110
time t = 2min
= 120 second
we know also
circumference or distance of circle = 2πr
⇒2×22/7×110
⇒ 691 m
∴ speed = distance / time
⇒691 m/ 120
=> 5.75 m/s
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