Calculating Average Force During Collision

[phy2ic24m3]

Homework Statement

A person mass is 2.20 times 10 raised tothe second kg...he falls and hits the ground. His average accelaration over the course of the collision is 75.0 m/s squared. Find the avarage force that the ground exerts on him during collision.

Homework Equations

F=MDeltaV

The Attempt at a Solution

 

[PhanthomJay]

That's a pretty heavy person at 220 kilos. Anyway, your relevant equation is incorrect. Try Newton's 2nd law. That will give you the net force acting on the person during the collision. The net force includes his weight down and the gound force acting up.