Question

A wave travels 12 m east in 3.0 s. What is the velocity of the wave?

Answer 1

4 m/s

Explanation: TOOK THE TEST

Answer 2

Answer: + 4 m/s

Working Out:

V = Δ x ÷ Δ t ;where V = velocity, Δ x = displacement, Δ t = change in time

V = Δ x ÷ Δ t

V = (12 m east) ÷ 3.0 s

V = 4 m/s to the east OR V = + 4 m/s

∴ The velocity of the wave is + 4 m/s