The figure is a graph of the force exerted by the floor on a woman making a vertical jump.
At what speed does she leave the ground? Hint: The force of the floor is not the only force acting on the woman.
The Attempt at a Solution
I am completely lost with this question. First I derived her mass from the 600N from the graph. Which was about 61.22kg
Then I calculated the Impusle from the area underthe graph, but where from? All the area or minus the forces of gravity? then I used:
Impulse= m(delta v)
But Im not getting anywhere :(