Question

a cyclist takes 10 sec to complete a circle track of radius 70 m . find his angular and linear speed

Answer 1

Given,

t = 10 sec

r = 70 m

To Find,

Angular Velocity = ω = ?

Linear Speed = v = ?

Sol. Angular Velocity is given by,

ω = 2π/t

ω = (2 × 3.14)/10

ω = 0.628 rad/s

Now,

Linear Speed is given by,

v = rω

v = 70 × (2 × 3.14)/10 ------------- (We will take this for easier calculation. You may take exact value also.)

v = 43.96 m/s

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Answer 2

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