Question

1. how fast are you moving relative to your chair (earth’s surface)?
2. why is motion relative? even things that appear to be at rest _____. when we describe the ___ of one object with respect to another, we say that the object is _____ relative to the other object.

ch. 3.2

1. what is the equation for speed?
2. what does the slash symbol (/) mean?
3. what units for speed will we primarily use?
4. what is the equation for average speed?
5. what is instantaneous speed?

Explanation:

1. If you are sitting still on the chair, relative to the Earth's - surface (your chair), your speed is 0 m/s. But Earth is rotating and orbiting the Sun, so relative to other celestial - bodies, your speed is different.
2. Motion is relative because even things that seem at rest are moving relative to other objects in the universe. When we describe the motion of one object with respect to another, we say the object is in motion relative to the other.
3. The equation for speed is $v = \frac{d}{t}$, where $v$ is speed, $d$ is distance traveled, and $t$ is the time taken.
4. The slash symbol (/) means division. In the speed formula $v=\frac{d}{t}$, it indicates dividing the distance $d$ by the time $t$.
5. The primary units for speed we will use are meters per second (m/s). Other common units include kilometers per hour (km/h) and miles per hour (mph).
6. The equation for average speed is $\bar{v}=\frac{\Delta d}{\Delta t}$, where $\bar{v}$ is average speed, $\Delta d$ is the total distance traveled, and $\Delta t$ is the total time taken.
7. Instantaneous speed is the speed of an object at a particular moment in time.

Answer:

1. If stationary relative to the chair, 0 m/s relative to Earth's surface.
2. Are moving relative to other objects; motion; in motion
3. $v = \frac{d}{t}$
4. Division
5. Meters per second (m/s)
6. $\bar{v}=\frac{\Delta d}{\Delta t}$
7. The speed of an object at a particular moment in time.