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Riders on the Power Tower are launched skyward with an

acceleration of 4g, after which they experience a period of free

fall. (Figure 1)

What is a 60 kg rider's apparent weight during the launch?

What is a 60 kg rider's apparent weight during the period of

free fall?

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during launch total relative accelaration =4g g=5g

so weight=m*a=60*(5*9.8)=2940N

during free fall total relative accelaration =g-g=0

so weight=m*a=60*(0)=0N

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