2. 1D Motion / Kinematics

Every year the Earth travels about 10⁹ km as it orbits the Sun. What is Earth's average speed in km/h?

A particle at t₁ = ― 2.0 s is at 𝓍₁ = 5.2 cm and at t₂ = 3.4 s is at 𝓍₂ = 8.5 cm. What is its average velocity over this time interval? Can you calculate its average speed from these data? Why or why not?

Starting from the front door of a ranch house, you walk $60.0$ m due east to a windmill, turn around, and then slowly walk $40.0$ m west to a bench, where you sit and watch the sunrise. It takes you $28.0$ s to walk from the house to the windmill and then $36.0$ s to walk from the windmill to the bench. For the entire trip from the front door to the bench, what are your (a) average velocity? (b) average speed?

If a car travels for $2$ hours at an average velocity of $55mph$, what is the total distance covered by the car?

Which of the following correctly describes how to calculate the average speed of an object?

A $\mathrm{speed}$ divided by a $\mathrm{time}$ is called an ____________.

Which of the following best describes the rate of change in an object's position over time?

Which of the following gives the correct formula for average velocity?

A sound travels a distance of $2km$ in $5.8s$. What is the average speed of sound during this interval?

$$Velocity is a vector quantity that measures an object's speed and what other property?$$

Which formula is used to calculate average velocity?

A snail moves at a constant average velocity of $0.05m/s$. How far can the snail move in $2$ seconds?

Which of the following equations correctly represents the average velocity $v$ of an object moving in a straight line?

In which of the following situations is the distance traveled proportional to $t$?