Question

question 4
adjust the applied force until the speed is constant at some value 25 m/s or higher.
a. what is the applied force? select
b. what is the friction force? select
c. what is the net force? select

Explanation:

Step1: Recall Newton's first - law

When the speed is constant, the object is in a state of equilibrium. According to Newton's first law, the net force acting on an object in equilibrium is zero, i.e., $F_{net}=0$.

Step2: Analyze the forces

The forces acting on the object are the applied force $F_{applied}$ and the friction force $F_{friction}$. Since $F_{net}=F_{applied}-F_{friction}$ and $F_{net} = 0$, we have $F_{applied}=F_{friction}$.

Answer:

A. The applied force is equal to the friction force.
B. The friction force is equal to the applied force.
C. The net force is 0 N.