Average Velocity

Which formula is used to find average velocity?

• $\overline{v}=\frac{v_f-v_o}{2}$

• $\overline{v}=\frac{v_f+v_o}{2}$
  

• $\overline{v}=v_f+v_o$
  

• $\overline{v}=v_f+v_o$
  

Which of the following is the correct relationship between distance, average velocity, and time?

• $\Delta x=\frac{\overline{v}}{\Delta t}$

• $\overline{v}=\frac{v_f+v_0}{2}$

• $\Delta x=\overline{v}\cdot\Delta t$

What is the symbol is used for average velocity?

• $\overline{v}$

• $v_f$

• $v_o$

• $\Delta$

What is the symbol is used for initial velocity?

• $\overline{v}$

• $v_f$

• $v_o$

• $\Delta$

What symbol is used to mean change in?

• $\overline{v}$

• $v_f$

• $v_o$

• $\Delta$

A bike starting at rest reaches a final velocity of 8.0 m/s. What is the cyclist's average velocity?

• 0 m/s

• 16 m/s

• 2.0 m/s

• 4.0 m/s

A bicyclist, traveling with a constant speed, covers 50.0m in 10.0s. What was the average speed?

• 500. m/s

• 50.0 m/s

• 5.0 m/s

• 0.5 m/s

Tags

NGSS.MS-PS3-1

A car travels at a constant speed of 15.0m/s for 20.0 seconds. How far does it travel?

• 300. m

• 35.0 m

• 5.0 m

• 500 m

A marble rolls 20 cm across the table with a constant speed of in 4.0 cm/s. How long does the marble roll?

• 80 s

• 5.0 s

• 24 s

• 4.0 s

A bicyclist averages 4m/s, as she steadily slows to a stop. What was her initial velocity?

• 0 m/s

• 8 m/s

• 2.0 m/s

• 4.0 m/s