Question

calculate the pressure exerted on the group by a boy of mass 60 kg if he stands on one foot the area of the sole of his shoe is 150 cm square​

Answer 1

The pressure exerted by a boy weighing 60 kg standing on one foot, with the sole area of 150 cm², is calculated using the formula for pressure, resulting in 39,200 pascals (Pa).

Step-by-step explanation:

To calculate the pressure exerted by a boy weighing 60 kg standing on one foot, with the area of the sole of his shoe being 150 cm², we use the formula for pressure (P):

P = F / A,

where P is the pressure, F is the force (in this case, due to weight), and A is the area over which the force is distributed.

Firstly, we convert the weight of the boy to force (using the acceleration due to gravity, 9.8 m/s²) and the area from cm² to m² for consistency in units:
F = mass × gravity = 60 kg × 9.8 m/s² = 588 N
A = 150 cm² × (0.01 m/cm)² = 0.015 m²

Then we calculate the pressure:
P = 588 N / 0.015 m² = 39,200 Pa

This means the pressure exerted by the boy standing on one foot is 39,200 pascals (Pa).