In which case we exert more pressure on the ground when we stand on one foot or onboth the feet. Justify your answer

We exert more pressure on the ground when we stand on one foot.

Here's why:

Pressure is defined as the force applied per unit area. The formula for pressure is P = F/A, where P is pressure, F is force, and A is area.

When we stand, the force exerted on the ground is essentially our weight, which is the mass of our body times the acceleration due to gravity. This force is constant whether we stand on one foot or both feet.

However, the area over which this force is distributed changes. When we stand on both feet, the force (our weight) is distributed over the area of both feet. When we stand on one foot, the same force is distributed over the area of just one foot.

Since the area is smaller when we stand on one foot, and the force (our weight) remains the same, the pressure exerted on the ground is greater when we stand on one foot. This is according to the formula P = F/A: for a constant force, if the area decreases, the pressure increases.