6. Intro to Forces (Dynamics)

In an Atwood machine consisting of two masses $m_1$ and $m_2$ connected by a light, inextensible string over a frictionless pulley, which of the following correctly gives the acceleration $a$ of the system (take upward as positive for $m_1$)?

If a block is moving to the left at a constant velocity, what can one conclude about the forces acting on it?

According to Newton's First Law, what type of force is required to set a stationary soccer ball into motion?

A $1200kg$ car travels at a constant velocity of $15m/s$. What is the net force acting on the car?

In a game, a block is being pushed to the right with a force of $10N$. Which of the following forces applied to the left would result in balanced forces on the block?

Which of the following lists the three basic steps in the NSC collision prevention formula as applied to $N{e}^{1}wton’s$ First and $S{e}^{2}cond$ Laws?

According to Newton's First and Second Laws, what happens to the acceleration $a$ of a car in a frontal collision if the net force $F\_\mathrm{net}$ acting on it is large and acts in the opposite direction of its initial motion?

According to Newton's First Law, when an object is in motion and no net external force acts on it, what will happen to its motion?

According to Newton's First Law, an object cannot remain at rest unless which of the following conditions is satisfied?

According to Newton's Second Law, an increase in $F$, not resistance, results in an increase of load.

According to Newton's Second Law, if several objects all have the same mass ($m$) and different net forces ($F\_\mathrm{net}$) are applied to each, which statement is true about their accelerations ($a$)?

Which of the following is an example of an unbalanced force?

If a monkey floating in outer space throws his hat away, the hat and the monkey will both

According to Newton's First Law, will the $velocity$ of a book change as it moves across a surface with no friction and no external forces acting on it?

According to Newton's laws, forces always occur in which of the following ways?