Question

I went to a shop with a constant speed of 30m/s and came back with 20m/s . what is my average speed of travel? ​

Answer 1

Answer:

      24m/s

Step-by-step explanation:

Distance to shop = x

Time taken to travel to shop = t₁ = x / 30

Time taken to travel back = t₂ = x / 20

Average speed (Vav) = Total distance / total time

                                    = 2x / t₁ + t₂

                                    = 2x ÷ x / 30 + x / 20

                                    = 2x ÷ x ( 1 / 30 + 1 / 20)

                                    = 2x ÷ x (30 + 20 / 600)

                                    = 2 ÷ 50 / 600

                                    = 2 × 600 / 50

                                    = 24m/s

                                   

     Please Mark My Answer As Brainliest

                     ⊕Thank You ⊕

Answer 2

Step-by-step explanation:

average speed=2s/s/30+s/20

=2*30*20/50

=6*4=24m/s