Physics, asked by gaurav45038, 1 year ago

on a 120 track a train travels the first 30 km at uniform speed of 30km/h . how fast must it travel the next 90km so as to average 60km/hr for the entire trip

Answers

Answered by bimal95

Speed of the train in the first 30 km, v1 = 30 km/h Speed of the train in the next 90 km, v2 (to be determined) Average speed = 60 km/h = (v1 + v2)/2 = (30 km/h + v2)/2 ⇒ v2 = 90 km/h

gaurav45038: you did wrong

bimal95: okkk

gaurav45038: will u do again with correct solution and send me ?

bimal95: okkk

gaurav45038: send fast

bimal95: why??

gaurav45038: i need to prepare for my exam

bimal95: oooo

bimal95: i think mere pass v time nahi hai

bimal95: okk bro

Answered by priyarathore2006

Answer:

Here is your answer

Explanation:

hope it helps you

Attachments:

Previous Question

Next Question