Question

A boy travels speed v1 v2 and v3 for three susseive time intervals which are in the ratio 1:1:2 find the average speed

Answer 1

Answer:

Explanation:Hope this helps

Answer 2

time intervals:1t+1t+2t

(distance=velocity*time)

V avg=(V1t+V2t+2V3t)÷t+t+2t

V avg= t (v1+v2+2v3)÷ t (1+1+2)

V avg= V1+V2+2V3÷4