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Sagot :
Diameter of the football players' piston if the football players are held to a height 0.800 m above the cheerleader is 53 cm
mass of the cheerleader is, m1=51.0kg
mass of each football player is, m2=110kg
diameter of the piston for cheerleader is, d1=18.0cm=0.18m
W1=m1g
W1=51.0kg×9.8m/s²
W1=500.31N
W2=4316.4N
P1=W1/(π/4d1²)
P1=500.31N/(π/4×(0.18m)²
P1=19660.94Pa
P2=5495.81/d2²Pa
P1=P2
19660.94Pa=5495.81/d2²Pa
d2=0.53 m
d2=53cm
so, the diameter of the football players piston is 53cm
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