Physics, asked by honey7655, 1 year ago

on a 120 kilometre track A train travels the first 30 km at a uniform speed of 30 km per hour how fast The train travels the next 90 km so to average 60 km per hour for the entire trip​

Answers

Answered by Archanastar
10

S1= 30 km

V1= 30 km/hr

T1=30/30=1 hr

S2=90 km

T2= 2-1=1 hr

V2=S2/T2=90/1=90 km/hr

Total distance = 120 km

average speed = 60 km/hr

average speed = total distance/

total time

60= 120/T

T=120/60

T= 2 hr

Hope it helps you.

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