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28 June, 17:30

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. What pressure is exerted by the box where it rests?

14.7 N

1.5 N

0.153 N

6.53 N

+1
Answers (1)
  1. 28 June, 18:15
    0
    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
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