A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the water. 1) If she reaches a depth of 3.40 m, what is the average resistance force exerted on her by the water

19372.29 N

Explanation:

Kinetic Energy of the man = Work done by the average resistive force of water.

mg (H+d) = F*d ... Equation 1

where, m = mass of the woman, H = Height of the platform, d = depth of water reached, F = average resistive force exerted by water.

make F the subject of the equation,

F = mg (H+d) / d ... Equation 2

Given: m = 65.0 kg, H = 10 m, d = 3.4 m, g = 9.8 m/s²

Substitute into equation 2

F = 65 (9.8) (100+3.4) / 3.4

F = 19372.29 N