In February 1955, a paratrooper fell 365 meter from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. Suppose that his speed at impact was 56 m/s (terminal speed), that his mass(including gear) was 80 kilogram, and that the magnitude of the force on him from the snow was at the survivable limit of 1.2 x 105 N.
(a) Obtain the minimum depth of snow that would have stopped him safely?
m
(b) Obtain the magnitude of the impulse on him from snow?
kg•m/s