2. 1D Motion / Kinematics

Which of the following best describes what happens when you accelerate to avoid a collision while driving a car?

Which of the following is not an example of $acceleration$?

An object starts from rest and accelerates uniformly at $2 m/s^2$. What is its velocity ten seconds after starting from rest?

Which of the following best explains why some objects fall slower than others when dropped from the same height?

A hockey puck moves in a straight line with its velocity given by $v=2+3t$ (in m/s, where $t$ is in seconds). What is the magnitude of the puck's acceleration at $t=5$ s?

Which of the following situations describes an object experiencing the greatest magnitude of $a$?

Four cars each start from rest and accelerate uniformly. Car A accelerates at $2 m/s^2$ for $5$ seconds, Car B at $3 m/s^2$ for $4$ seconds, Car C at $4 m/s^2$ for $3$ seconds, and Car D at $5 m/s^2$ for $2$ seconds. Which car reaches the greatest final velocity?

Which of the following is an example of $\mathrm{negative} \mathrm{acceleration}$?

Which formula gives the acceleration of an object moving from rest in a straight line, given the distance $s$ traveled in time $t$?

An object is moving at $30m/s$ and takes $5s$ to come to a stop. What is the object's acceleration?