When landing after a spectacular somersault, a 40.0 kg gymnast decelerates by pushing straight down on the mat. calculate the force she must exert if her deceleration is 7 times the acceleration of gravity?
The force of the gymnast on the mat comes from the second law of physics [tex]F=m*a[/tex] where the acceleration is given as [tex]a=7*g =7*9.81 =68.67 (m/s^2)[/tex] Therefore the force is [tex]F=40*68.67 =2746.8 N
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