Question

A woman dancing in high-heeled shoes accidentally steps on her partner's foot with the heel of her shoe. Even though her partner outweighs her by 400N and can easily lift her off the floor, he feels pain because:

• A. her weight is concentrated into a small area
• B. her small foot has a large momentum
• C. her foot has a large inertia
• D. his foot has no inertia

Answer 1

Answer: (A)

her weight is concentrated into a small area

We know , pressure , $P=F/A$

where $F=$ force (in this case , weight of woman) and $A=$ area on which force is applied ,

as the woman is having heels , so the area is very small and due to this, pressure on the foot of partner increases (because $P\propto 1/A$) verymuch and he feels pain.