Homework Help: Physics

Posted by Natasha on Saturday, February 18, 2012 at 6:17pm.

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.7m, 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 3.0m from the center of the circle.

Physics - kevin, Saturday, February 18, 2012 at 6:20pm
i think its 3.7 meters but thats a lil advanced for me so idk
Physics - bobpursley, Saturday, February 18, 2012 at 6:22pm
cent acceleration= w^2 r

w is constant, so acceleration is proportional to r.

centacceleration(3)=wtip(3/6.7)

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