Physics Homework Help?

Question

A person wearing the shoes has a mass of 51 kg .

Part A

Estimate the pressure exerted on a floor by one pointed heel of area 0.45 cm^2.

 

Part B

Estimate the pressure exerted on a floor by one wide heel of area 16 cm^2.c

 

Answer 1

(a)

The mass of the person is 51 kg.

Area of the pointed heal is

Pressure is defined as force per unit area.

Force acting on the floor is

Pressure exerted on the floor due to two pointed heels is

Therefore, pressure exerted on the floor due to one pointed heel is half of the pressure due to two pointed heels.

Pressure exerted on the floor due to one pointed heel is

Answer 2

(b)

The mass of the person is 51 kg.

Area of the wide heels is

Pressure is defined as force per unit area.

Force acting on the floor is

Pressure exerted on the floor due to two wide heels is 

Therefore, pressure exerted on the floor due to one wide heel is half of the pressure due to two wide heels.

Pressure exerted on the floor due to one wide heel is