select the correct answer. a brick is lying o...
select the correct answer. 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 force 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
Answer
# Answer:
B. 73.7 newtons
# Explanation:
## Step1: Identify the forces
In static - equilibrium, normal force $N$ equals weight $W$.
## Step2: Calculate the weight
The formula for weight is $W = mg$, where $m = 7.52$ kg and $g=9.8$ m/s².
$W=7.52\times9.8=\ 73.696\approx73.7$ N. Since $N = W$, the normal force is 73.7 N.