2. 1D Motion / Kinematics

If the speed of your car is doubled, how does its $KE$ (kinetic energy) change?

A car moves $4$ times as fast as another identical car. Compared to the slower car, the faster car has:

In a motion graph, a car moves such that at segment c, its velocity changes from $0$ to $30$ m/s in $1$ second. What is the acceleration of the car at segment c?

A particle moves along a straight line with its position given by $x=4+2t+3t^2$, where $x$ is in meters and $t$ is in seconds. What is the initial velocity of the particle?

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 $\mathrm{negative} \mathrm{acceleration}$?