2. 1D Motion / Kinematics

In which of the following situations will a ball experience the greatest $a$?

Now consider the children's linear accelerations. Which of the following statements is correct?

Which of the following best describes how motion maps illustrate accelerated motion?

If your car is accelerating to the right from a stop, which of the following statements is true about the direction of its acceleration vector?

Which of the following best describes $a$cceleration in physics?

Which of the following factors directly affect an individual's total stopping time when bringing a moving vehicle to rest?

If $v$ is constant, what is the $a$ of the object?

A cart moves along a straight track with a low fan speed, resulting in a constant acceleration. If the cart's velocity increases from $10 \text{cm}/\text{s}$ to $30 \text{cm}/\text{s}$ in $4 \text{s}$, what is the acceleration of the cart in $\text{cm}/\text{s}{2}^{}$?

Which of the following best describes positive $a$?

Which two controls on a car are primarily responsible for causing a change in $v$?

A cheetah accelerates from $15\text{m/s}$ to $30\text{m/s}$ in $3.0\text{s}$. What is the cheetah's acceleration?

An object moves along a straight line and its velocity vs. time graph consists of three segments: Segment A (velocity increases from $0$ to $5 m/s$ from $t=0$ to $t=2 s$), Segment B (velocity remains constant at $5 m/s$ from $t=2 s$ to $t=4 s$), and Segment C (velocity decreases from $5 m/s$ to $0$ from $t=4 s$ to $t=6 s$). During which segment(s) is the object speeding up?

Which of the following best explains why quick acceleration can increase fuel consumption by $2\text{ miles per gallon;}$?

The brakes of your car can provide an acceleration of 4.6m/s². You're speeding at 37.5 m/s and suddenly see a police car, so you slam the brakes. How long will it take for your car to slow down to the speed limit of 25 m/s?

Starting from rest, a car accelerated to 20m/s in 4s. What was the magnitude of the car's constant acceleration?