Question

A bird flies at a speed of 15 m/s for 10 s and 25 m/s for 5 s what is the birds average speed?

Answer 1

• 18.33 m/s

Explanation:

Average speed = distance/time

Distance is:

• 15 m/s * 10 s + 25 m/s *5 s =
• 150 m + 125 m =
• 275 m

Time is

• 10 s+ 5 s = 15 s

Av. speed

• 275/15 = 18.33 m/s