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JulsSmile [24]
3 years ago
13

A brick is lying on a table in a state of static equilibrium. If the mass of the brick is 7.52 kilograms, what is the normal for

ce exerted by the table on the brick?
A. −73.7 newtons
B. 73.7 newtons
C. 80.7 newtons
D. 7.52 newtons
E. 8.07 newtons

I believe the answer is either A. or B.—I'm just not sure if it should be expressed as a negative or not because the force is acting in the opposite direction. 
Physics
1 answer:
frez [133]3 years ago
5 0
In mechanics, the normal force<span> is the component, perpendicular to the surface (surface being a plane) of contact, of the contact </span>force<span> exerted on an object . We calculate as follows:

</span>∑F along x = 0 = F - Fn
<span>
Fn = F = mg = 7.52(9.81) = 73.77 N <------OPTION B</span>
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