Question

List the following items in order of decreasing speed, from greatest to least: (A) A wind-up toy car that moves 0.10 m in 2.5 s . (B) A soccer ball that rolls 2.5 m in 0.55 s . (C) A bicycle that travels 0.60 m in 7.5×10−2 s .(D) A cat that runs 8.0 m in 2.5 s . Enter your answer as four letters separated with commas.

Answer 1

bicycle>soccer ball>cat>toy car

Step-by-step explanation:

s = Distance

t = Time

Speed is given by

`v=(s)/(t)`

For toy car

`v=(0.1)/(2.5)=0.04\ m/s`

For soccer ball

`v=(2.5)/(0.55)=4.54\ m/s`

For bicycle

`v=(0.6)/(7.5* 10^(-2))=8\ m/s`

For cat

`v=(8)/(2.5)=3.2\ m/s`

8>4.54>3.2>0.04

bicycle>soccer ball>cat>toy car