What is the minimum depth of snow needed to stop a paratrooper safely?

[patelkey]

Homework Statement

A paratrooper fell 375 m from an airplane without being able to open his chute. Assume that his speed at impact was 52 m/s (terminal speed), that his mass (including gear) was 85 kg, and that the force on him from the snow was at the survivable limit of 1.2 multiplied by 105 N.

a.) What is the minimum depth of snow that would have stopped him safely?

b.)What is the magnitude of the impulse on him from the snow?

Homework Equations

The Attempt at a Solution

 

[rl.bhat]

Hi patelkey, welcome to PF. Please go through the PF rules. According that you have to show how much you know about the problem. You have to find out the relevant equations to solve the given problem. You have to your attempts. Still you are not getting the answer, we will help you.
So first of write down the relevant equations.