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BrodieEX
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Homework Statement
[/B]
Gr.11 Physics, about 2 months in so I don't know much.
Bob pitches his calculator into the air and watches it rise to a height of 5 meters above the floor, and rebound to a height of 4 meters. The calculator was in contact with the floor for ten milliseconds, and it has a mass of 500 grams. Calculate the upward force exerted on the calculator by the floor.
Homework Equations
Here's all the equations I think would be relevant?:
Fn = Fg
Fg = mg
Ff = uFn
Fnet = ma
The Attempt at a Solution
I'm not entirely sure where to start with such little info. I tried to get the Force of Gravity (Fg) like this:
Fg = mg
= (0.5kg)(9.8)
= 4.9N
But I feel like the fact that it was accelerating towards the ground would increase that?
Any help is appreciated.