You’ve just put a new wood floor in your house. An object will dent the flooring if the stress—the force divided by the area—exerted by the object is great enough. Who is more likely to dent your floor: a 50 kg woman in high-heeled shoes (assume a circular heel pad 0.50 cm in diameter) with all of her weight on one heel or a 5000 kg African elephant (assume a circular contact area of 40 cm in diameter for one foot) standing on all four feet?