The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6. 7 m, measured from its tip to the center of the circle. Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point located 3.0 m from the center of the circle.

Explanation:

The centripetal acceleration is given as follows:

where,

ac = centripetal acceleration

v = linear speed = rω

r = radius

ω = angular speed

Therefore,

Therefore, the ratio will be:

where,

r₁ = 6.7 m

r₂ = 3 m

Therefore,

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