6. Intro to Forces (Dynamics)

When driving a car equipped with anti-lock brakes, which of the following best explains why the car is less likely to skid during sudden braking, according to Newton's First and Second Laws?

Which of the following examples best illustrates Newton's First Law of Motion?

According to Newton's First Law, what is generally the net force on an object that is moving at $constant$ velocity?

An electron of mass $m$ is moving in the $x$-direction with acceleration $a$. According to Newton's Second Law, what is the $F_x$-component of the net force acting on the electron?

According to Newton's laws, what does the equation $\sum F=0$ mean for an object?

Which of the following best describes controlled braking according to Newton's First and Second Laws?

According to Newton's First Law, what will happen to an object in motion if no unbalanced force acts on it?

According to Newton's First and Second Laws ($F_{\mathrm{net}}=ma$), what primarily determines the direction in which a personal watercraft (PWC) will travel when a force is applied?

An object cannot remain at rest unless which of the following holds?

According to Newton's First and Second Laws, what force primarily causes a man who jumps from the roof of his house and lands on his feet to decelerate upon hitting the ground?

A $5 \mathrm{kg}$ box is being pushed to the right with a force of $20 N$ while friction exerts a force of $8 N$ to the left. What is the magnitude and direction (right or left) of the net force acting on the box?

According to Newton's First and Second Laws, what happens to an object when an unbalanced force acts on it?

According to Newton's Second Law, if a force is exerted on an object, what is the resulting effect on the object's motion?

According to Newton's First Law, for an object to remain at rest, which of the following must be true about the forces acting on it?

According to Newton's Second Law, what does the sum of all forces acting on an object equal to? $\sum F$ = $ma$