Question

I run around a circular track, with radius 25m, for 4 and 1/4 times before stopping. It takes me 16

minutes. (A) What is my speed? (B) What is my velocity? (Don't worry about direction)

Answer 1

See below

Step-by-step explanation:

Distance around track = circumference = pi * 2 r = pi * 2 * 25

= 157 m

4 1/4 times = 667.6 m

speed = 667.6 m / 16 min = 41.7 m/ min

magnitude of velocity is the same 41.7 m/min

(= .695 m/s)