McCRAJ: Catching up

McCRAJ: Catching up

Review: average velocity

•  $d=vt$  

•  $v=\frac{d}{t}$  

•  $t=\frac{d}{v}$  

Multiple Select

Select all of the correct equations.

• $d=vt$

• $v=dt$

• $d=\frac{v}{t}$

• $v=\frac{d}{t}$

• $t=\frac{d}{v}$

Fill in the Blanks

Sammy the seagull flies at 2 m/s for 10s, then at 6 m/s for 10s. What is his average velocity in m/s?

Fill in the Blanks

Tubby the tortoise crawls at 0.2 m/s for 10 m, then at 0.6 m/s for another 10 m. What is his average velocity in m/s?

Fill in the Blanks

Hammy the hamster crawls at 0.2 m/s for 10s, then at 0.5 m/s for 20 s. What is his average velocity in m/s?

Fill in the Blanks

Betty the bat flies at 1 m/s for 5 m, then at 3 m/s for 9m. What is his average velocity in m/s?

Multiple Choice

This distance vs time graph shows a head start. The equation with no head start is

 $d=vt$  .
What is the equation with a head start of  $d_0$  ?

•  $d=vt+d_0$  

•  $d=vt-d_0$  

•  $d=vt\cdot d_0$  

•  $d=\frac{vt}{d_0}$  

Multiple Choice

At what time did blue catch up to red?

• $t=0$

• $t=1$

• $t=2$

• $t=3$

Multiple Choice

Where did blue catch up with red?

• $d=0$

• $d=1$

• $d=2$

• $d=3$