6. Intro to Forces (Dynamics)

When the brakes are applied, the brake shoes or linings are pressed against the:

Which of the following best describes a main difference between balanced and unbalanced forces acting on an object?

When you travel in an elevator that suddenly accelerates upward, which of the following best describes what you feel according to Newton's First and Second Laws?

When a feather and a hammer are dropped at the same time on the Moon, what happens to them according to Newton's First and Second Laws ($F=ma$)?

In the context of Newton's First $L^1$ and Second $L^2$ Laws, in what flight condition are torque effects most pronounced in a single-engine airplane?

Which of the following best describes a balanced force according to Newton's First Law?

According to Newton's First and Second Laws, what prevents the springs in a car's suspension system from bouncing continuously after a disturbance?

In the context of Newton's First $1^{\text{st}}$ and Second $2^{\text{nd}}$ Laws, what is the phenomenon called when strong winds cause a vehicle to lose all control due to the unbalanced force acting on it?

Which statement best explains how planets move in orbit as supported by Newton's First Law of Motion?

According to Newton's First and Second Laws, are there components of the velocity $v$ of an object that cannot be determined solely by measuring the force $F$ acting on it?

Which of the following best describes the relationship between force and motion according to Newton's Second Law?

At the junction of three wires as shown in Figure 1, the forces in each wire are represented by vectors $\stackrel{1}{F}$, $\stackrel{2}{F}$, and $\stackrel{3}{F}$. According to Newton's First and Second Laws, which of the following must be true if the junction is at rest?

Which of the following statements about the center of gravity and stability is correct according to $N^1$ and $N^2$ Laws (Newton's First and Second Laws)?

When you hold a picture motionless against a wall by pressing on it, which of the following statements correctly describes the forces acting on the picture?