2. 1D Motion / Kinematics

Which of the following best describes average velocity?

A train travels $300$ feet every $5$ seconds. Assuming it continues at the same speed, how far will it travel in $13$ seconds?

A car travels $200 \mathrm{km}$ in $2 \mathrm{hr}$ at a constant speed. What is its average velocity in $\mathrm{km}/\mathrm{hr}$?

Which of the following methods can be used to determine the average speed of a car over a given distance?

An object moves along a straight line, and its position as a function of time is shown in the figure below. If the object starts at $x=0$ m at $t=0$ s and reaches $x=12$ m at $t=6$ s, what is the average speed of the object from $t=0$ s to $t=6$ s?

Which of the following best describes the difference between $v\_\mathrm{inst}$ (instantaneous velocity) and $v\_\mathrm{avg}$ (average velocity)?

Suppose an object moves along a straight line in four separate trials, each lasting the same amount of time. The displacements for the trials are as follows: Trial 1: $10m$ east, Trial 2: $15m$ west, Trial 3: $8m$ east, Trial 4: $12m$ west. During which trial is the magnitude of the average velocity the largest?

A brick is dropped from rest from a height of $20m$. Ignoring air resistance, what is the average velocity of the brick during its fall until it hits the ground?

A car travels a distance of $400 m$ in $20 s$. What is its average velocity during this time interval?

Which of the following best describes the difference between $velocity$ and $speed$?

Which of the following units are commonly used to measure both velocity and speed? Select the correct option.

Which of the following is an example of speed rather than velocity?

In the context of one-dimensional motion, is it possible for the $\mathrm{average velocity}$ of an object to be negative over a given time interval?

Which of the following best describes a $velocity$ (as opposed to a $speed$)?

A train is traveling at $55 \text{miles per hour}$ and begins to brake to a stop. If the average deceleration is constant at $0.5 m/s^2$, approximately how long does it take for the train to come to a complete stop?