anonymous
  • anonymous
A parachutist of mass 75kg descends with an acceleration of 8 m/s2. What is the upward force exerted by the air on the parachutist? How would you go about finding this answer?
Physics
katieb
  • katieb
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anonymous
  • anonymous
Forces acting are :- a) Weight, Wg b) upward air resistance, Fr F.net = Wg - Fr => 75*9.8 - Fr = 75*8 => Fr = 75*(9.8 - 8) => Fr = 135 N
anonymous
  • anonymous
drfigure out the forces ====find the net thats all just like shubham has done

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