6. Intro to Forces (Dynamics)

A box of mass $m$ is resting on a frictionless horizontal surface. If a constant horizontal force $F$ is applied to the box, what is the net force acting on the box?

When a wagon carrying a child is suddenly pulled forward, why does the child appear to fall backward?

A downward force of magnitude $5N$ is exerted on a book by the force of what?

What is the net force on an object when equal forces act on it in opposite directions according to Newton's First Law?

Which of the following best describes the applied force in the context of Newton's First and Second Laws?

If released from rest, the current loop will move in the direction of the net force acting on it according to Newton's Second Law. What will happen to the current loop if the net external force on it is $0$?

According to Newton's laws, what happens when you push a door closer to the hinges instead of near the edge?

An object's tendency to keep doing what it's doing, whether at rest or in motion, is known as what?

Which of the following best explains the concept of parallel forces in the context of $Newton’1^{\mathrm{st}}$ and $Newton’2^{\mathrm{nd}}$ Laws?

According to Newton's First and Second Laws, which of the following will cause an object to change its state of motion?

Which of the following is the best example of Newton's First Law of Motion?

According to Newton's First Law, what will happen to an object at rest if balanced forces continue to act upon it?

According to Newton's Second Law, what is the net force required to accelerate a $1000\mathrm{lb}$ load at $2m/s^2$? (Assume $1\mathrm{lb}=0.454\mathrm{kg}$.)

A block of mass $m_a$ rests on a smooth horizontal surface and is connected by a light string over a frictionless pulley to a hanging block of mass $m_b$. What is the acceleration of the system?

Which three factors primarily determine the force of impact experienced by an object according to Newton's First and Second Laws?