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gary32
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Homework Statement
I need to work out the following;
A spherical mass of 5kg is allowed to free fall through a distance of 6m onto a shock absorbent surface without rebound. If the mass penetrates into the surface a distance of 0.6mm before stopping, find the minimum retarding focre on the mass. Use any preferred method and assume negligible air resistance during free fall.
Homework Equations
F = Mass x Acceleration ?
Acceleration = V-U
It's the equation I'm looking for that's the problem,
The Attempt at a Solution
Would it just be the gravitational constant i need for acceleration?
F = 5kg x 9.81 x 6m = 294.3
and then work out the opposite for minimum retarding force on slow down (not sure what to do now)?
Any help would be great,
Thanks