Question

Please help me with this question....

Answer 1

Formula: avg speed = total distance / total time
total distance = 20 + 0 + 10 = 30 m
total time = 4s
avg. speed = 30m/4s = 7.5 m/s

Answer 2

but isn't velocity equal to displacement over time, and not distance?

Answer 3

so shouldn't the answer be 2.5?

Answer 4

Oh, I read it wrong. It's velocity not speed. Yes, your ans is correct for avg. velocity

Answer 5

oh okay :) thank you