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2 cuerpos estan colocados en el suelo. Uno tiene 80 kg y una superficie de apoyo de 400 cm2 y el otro tiene 250 kg y una superficie de apoyo
Question
2 cuerpos estan colocados en el suelo. Uno tiene 80 kg y una superficie de apoyo de 400 cm2 y el otro tiene 250 kg y una superficie de apoyo de 1000 cm2. ¿cual de ellos ejerce mayor presion sobre el suelo?
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Physics
3 years
2021-08-14T06:49:40+00:00
2021-08-14T06:49:40+00:00 1 Answers
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Answers ( )
Answer: The object 2 (250kg and 1000cm^2) does more pressure in the floor.
Explanation:
This question says:
There are two objects:
One with a mass of 80kg and a contact surface of 400cm^2, and the other with a mass of 250kg and a surface of 1000cm^2
which one does more pressure in the floor?
And, as this is a math question, i will solve it in English
The pressure is P = F/A
where F is the force that the object does in the surface, in this case the weight, and A is the area of contact.
For the object 1, the pressure is:
P1 = m1*g/A1 = g*(80kg/400cm^2) = g*0.2kg/cm^2
where g is the gravitational acceleration:
for the other object we have:
P2 = ,2*g/A2 = g*(250kg/1000cm^2) = g*0.25kg/cm^2
Here we can see that P2 is bigger than P1, so the object 2 does more pressure in the floor.