Saturday
March 28, 2015

Homework Help: physics help

Posted by Anonymous on Wednesday, March 3, 2010 at 1:59pm.

An amusement park ride consists of a car moving in a vertical circle on the end of a rigid boom of negligible mass. The combined weight of the car and riders is 5.1 kN, and the circle’s radius is 10 m. At the top of the circle, what are the (a) magnitude FB and (b) direction (up or down) of the force on the car from the boom if the car’s speed is v= 4.0 m/s? What are the magnitude(c) FB and (d) the direction (up or down) of the force if the cars speed is v= 13m/s?

I have tried doing F=ma then A=v^2/R
but this answer is not correct. I know the direction just not the magnitude.

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