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Tennis Kinematics Transient Analysis: A Ball Spin & Racket Collision Description by Miltiadis A. Boboulos

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9.2 Calculations of the striking strength when the ball hits the string area

The diagram for the loading on the racket frame (rim) and handle at the moment

of the strike is as shown in Figure 11.

ΣP1=F=F1

(Eq. 30)

The bending momentum on the rim and handle at the moment of the strike is

Mp = F . L

(Eq. 31)

and is overcome by the momentum of elastic support reactions C and D in the

handle (the hand of the player) and

C. L = F (L + l)

(Eq. 32)

ΣPi=F=F1

Fig. 11

(Ra)

(Rb)

Fig. 12

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