Respuesta :
Given:
Mass of cup = 0.404 kg
If the cup is placed on a desk and it sit there undisturbed, let's determine how much force the desk will exert on it.
Given that the cup is left undisturbed, the Earth applies a gravitational force on the cup.
The desk will exert a force which is equal to the magnitude of the weight of the cup, and also in opposite direction (normal reaction).
Thus, to find the force, apply the formula:
F = m x g
Where:
• F is the force
,• m is the mass = 0.404 kg
,• g is acceleration due to gravity = 9.8 m/s²
Thus, we have:
[tex]\begin{gathered} F=m*g \\ \\ F=0.404*9.8 \\ \\ F=3.96\text{ N} \end{gathered}[/tex]Therefore, the force the desk is exerting on the cup is 3.96 N.
ANSWER:
3.96 N
