A cyclist goes around a circular track once every 2 minutes. If the radius of the circular track is 110m, calculate the speed of the cyclist.

5.76 m/s

Explanation:

Applying,

S = d/t Equation 1

Where S = speed, d = distance, t = time.

For circular motion,

d = 2πr Equation 2

Where r = radius of the circular track, π = pie

Substitute equation 2 into equation 1

S = 2πr/t Equation 3

From the question,

Given: r = 110 m, t = 2 minutes = (2×60) = 120 s

Constant: π = 3.14

Substitute these values into equation 3

S = (2×3.14×110/120)

S = 690.8/120

S = 5.76 m/s

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

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