2. 1D Motion / Kinematics

Which of the following best describes $d$isplacement, given that it has both magnitude and direction?

Which of the following best explains how $velocity$ differs from $speed$, and why $velocity$ is considered a $vector$ quantity?

If east is the reference direction, then a train that is $-10m$ from you is toward the:

Given the following quantities, select the correct description for each: (A) $v$, (B) $d$, (C) $t$, (D) $m$. Which option correctly matches each symbol to its physical quantity? (A) velocity, (B) displacement, (C) time, (D) mass.

In physics, what type of quantity is $distance$ considered to be?

Which of the following vectors represents the resultant of adding vectors $a$ and $b$?

Starting from a pillar, you run a distance 140m east (the + x-direction), then turn around. 

(a) How far west would you have to walk so that your total distance traveled is 300m?

(b) What is the magnitude and direction of your total displacement?

Draw a pictorial representation for the following problem. Do not solve the problem. What acceleration does a rocket need to reach a speed of 200 m/s at a height of 1.0 km?

Problems 49, 50, 51, and 52 show a partial motion diagram. For each: Draw a pictorial representation for your problem.

Problems 44, 45, 46, 47, and 48 show a motion diagram. For each of these problems, write a one or two sentence 'story' about a real object that has this motion diagram. Your stories should talk about people or objects by name and say what they are doing.

For Problems 34, 35, 36, 37, 38, 39, 40, 41, 42, and 43, draw a complete pictorial representation. Do not solve these problems or do any mathematics. A car starts from rest at a stop sign. It accelerates at 4.0 m/s² for 6.0 s, coasts for 2.0 s, and then slows at a rate of 2.5 m/s² for the next stop sign. How far apart are the stop signs?

Your roommate drops a tennis ball from a third-story balcony. It hits the sidewalk and bounces as high as the second story. Draw a complete motion diagram of the tennis ball from the time it is released until it reaches the maximum height on its bounce. Be sure to determine and show the acceleration at the lowest point.