Question

A bug walking on the circular rim of a flower pot completes one lap around the planter in 8.804s. If the radius of the planter is 13.4 cm, how fast was it traveling?

Answer 1

The formula to solve speed is:

 Speed = Distance ÷ Time 
= Circumference of pot (centimeters) ÷ 8.804 seconds 
= 2πr ÷ 8.804 cm/s 
= 2(3.14) (13.4) ÷ 8.804 cm/s 
= 84.152 ÷ 8.804 cm/s 
= 9.5583 or 9.56 cm/s (3 significant digits) 

= 0.0956 m/s