Question

If a train engin travel with 50 bogies at the speed of 120km/h . Then if 20 bogies are removed then what is the speed of the train ? ​

Answer 1

Answer:

300

Explanation:

in this question u have to apply the concept that power delievered by the engine will be same

power = force x velocity

let force on each bogie be F

then , P = 50Fx120 = 20Fx v

v comes out to be 300

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