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I'm trying to find the tension on the lateral epicondyle during a basic forehand ground stroke in tennis. So far i have the tension on the ball and tension on the racquet. I've come out with 133.9197 N for the tension on the ball and -63.5224 for the racquet. This is the formula i used to come out with these figures:

(α=alpha) (W=11.2 for the ball and 32.43 for the racquet) (r=.485m for racquet and .033m for the ball) (T=.35 s for the racquet and 2.31 s for the ball)

T=F

F=ma

T=ma

T=rα

T=(.485m)(-130.3706)

to get α, i used θ=intial W*T + (1/2)αT²

and the get θ, i used R=(W²sin2θ)/g

are my figures correct? What do i need to do next?

(this is not homework...just a fun problem i came up with)

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# Tension on the Lateral Epicondyle

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