a 15.0 kg crate sits on a table. what is the exertion of normal force acting on the crate? n = ? n
a 15.0 kg crate sits on a table. what is the exertion of normal force acting on the crate? n = ? n
Answer
Explanation:
Step1: Identify forces acting on crate
The crate is at rest on the table. The gravitational force $F_g$ acts down - ward and the normal force $n$ acts upward. According to Newton's first law, since the crate is in equilibrium ($\sum F = 0$), $n=F_g$.
Step2: Calculate gravitational force
The formula for gravitational force is $F_g = mg$, where $m = 15.0\ kg$ and $g=9.8\ m/s^2$. So $F_g=15.0\times9.8$. $F_g = 147\ N$. Since $n = F_g$, the normal force $n = 147\ N$.
Answer:
147