According to Newton's Second Law, which equation correctly expresses how to find the applied force acting on an object of mass $m$ experiencing an acceleration $a$?

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

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?

The airbag in a car inflates and deflates quickly so that during a collision,

According to Newton's First and Second Laws, why does increasing the stopping distance of a vehicle reduce the severity of a crash?

When reversing direction, you should consider:

When one vehicle is towing another by means of a chain, which of the following statements best describes the forces acting on the two vehicles according to Newton’s First and Second Laws ($\text{1^st}$ and $\text{2^nd}$ Laws)?

If your car begins to skid out of control, you should: