Respuesta :
The correct answer to the physics problem in pressure given above would be 1.5 N.
First, I converted the cm^2 to m^ 2 (31.4 cm^2 = .00314 m^2).
Then I computed for the force (F= mg = (47.1kg)(9.8m/s^2) = 461.58 N)
Consequently, I used the equation of pressure (P = Force/Area).
P = 461.58 N / .00314 m^2
P = 1.47 or 1.5 N
First, I converted the cm^2 to m^ 2 (31.4 cm^2 = .00314 m^2).
Then I computed for the force (F= mg = (47.1kg)(9.8m/s^2) = 461.58 N)
Consequently, I used the equation of pressure (P = Force/Area).
P = 461.58 N / .00314 m^2
P = 1.47 or 1.5 N
Answer:
Pressure = 147,000 N.
Step-by-step explanation:
Given : The bottom of a box has a surface area of 31.4 cm². The mass of the box is 47.1 kilograms. Acceleration due to gravity at sea level is 9.80 m/s².
To find : What pressure is exerted by the box where it rests.
Solution : We have given that area of box = 31.4 cm²
First we convert it in meter².
1 meter = 100 cm
31.4 cm² = 0.00314 meter².
Mass of box = 47.1 kg
Acceleration due to gravity = 9.80 m/s².
According to Newton second law of motion , F = mass * Acceleration due to gravity.
F = 47.1 * 9.8
F = 461.58 Newton.
Pressure = [tex]\frac{Force}{Area}[/tex].
Plugging the values of force and area.
Pressure = [tex]\frac{ 461.58}{0.00314}[/tex].Pressure
Pressure = 147,000 N.
Therefore, Pressure = 147,000 N.
