6. Intro to Forces (Dynamics)

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?

When an ascending elevator hanging from a cable is coming to a stop, which of the following best describes the direction of the net force acting on the elevator?

Two identical balls are released from rest at the same height: Ball A is dropped vertically, while Ball B is rolled down a frictionless incline from the same height. Neglecting air resistance, which ball has the greatest speed at the moment of impact with the ground?

Two crates, A and B, with masses $m_A$ and $m_B$, are stacked on top of each other in an elevator that is accelerating upward with acceleration $a$. What is the normal force exerted by crate B on crate A?

If a ball is rolled across a frictionless floor, what will happen to its motion according to $N’1^{\text{st}}Law$?

Which of the following can cause a moving object to change its direction according to Newton's First ($1^{\text{st}}$) and Second ($2^{\text{nd}}$) Laws?

According to Newton's $1^{\text{st}}$ and $2^{\text{nd}}$ Laws, which of the following can cause a moving object to change its direction?

According to Newton's Second Law, if the net force acting on a particle remains constant (that is, $F=ma$ is constant) but the speed of the particle is doubled, what happens to the acceleration of the particle?

In the context of Newton's First and Second Laws, what is meant by the net force acting on an object?

Earth is in constant motion. Which of the following does Earth's rotation on its axis cause?

Once the crate is sliding across a horizontal floor, which statement best describes the net force acting on it if it moves at constant velocity?

According to Newton's First Law, what property of matter causes your body to continue moving forward when a car suddenly stops?

A toboggan of mass $m$ slides down a frictionless hill inclined at an angle $\theta$ to the horizontal. What is the magnitude of the acceleration of the toboggan down the slope?