What Force is Required to Hold Up a Partner on a Swinging Circle?

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To determine the force required for a man to hold up his partner while swinging in a circle, the partner's weight of 565 N must be considered alongside the centripetal force needed for circular motion. The centripetal force formula, Fc = mv²/r, is relevant, where m is the mass, v is the speed, and r is the radius of the circle. The individual initially struggled with calculations, repeatedly arriving at an incorrect value of 160 N. Ultimately, clarification from another participant helped resolve the confusion, leading to a correct understanding of the forces involved. The discussion highlights the importance of accurately applying physics equations to solve real-world problems.
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Homework Statement


A man hanging upside down is holding a partner who weighs 565 N. Assume that the partner moves on a circle that has a radius of 6.50 m. At a swinging speed of 4.40 m/s, what force must the man apply to his partner in the straight-down position?

Homework Equations



I'm at a loss.

The Attempt at a Solution



but I am pretty sure that at the bottom of the circle the man holding up the other man must hold up a force=mg where m is the mass of the bottom partner. Therefore F=565.

Am I being asked the centripedial force?

I tried F(centripedal)= (525/9.8)*(4.4)2 and then divide that by the radius 6.5.

I got 160 which is not the correct answer.
 
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The upside-down man exerts an upward force towards the centre of the circle. The weight of his partner is downwards. The resultant of those 2 forces provides the centripetal force needed to make him move at that speed.
 
rock.freak667 said:
The upside-down man exerts an upward force towards the centre of the circle. The weight of his partner is downwards. The resultant of those 2 forces provides the centripetal force needed to make him move at that speed.

I keep getting 160 :(

Fc=mv2/r

Is that not correct?
 
spidey12 said:
I keep getting 160 :(

Fc=mv2/r

Is that not correct?

Ok. I solved it. Thanks to the one person who helped me.
 

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