Parachutists whose chutes have failed to open have been known to survive if they land in deep

Question:

Parachutists whose chutes have failed to open have been known to survive if they land in deep snow. Assume that a 75-kg parachutist hits the ground with an area of impact of 0.30m2 at a velocity of 60m/s, and that the ultimate strength of body tissue is 5 X 105 N/m2. Assume that the person is brought to rest in 1.0 m of snow. Show that the person may escape serious injury.