Question

A train passes by a pole with uniform acceleration ‘a’. Its front end when passes by it has speed
‘u’ and its back end when passes by it has speed ‘v’. Find speed of the middle part when it passes
by the pole?

JEE Main 2021 [ 25 Feburary Shift 1]

Answer 1

Answer:

speed of the middle part when it passes by the pole is $v_o = \sqrt{\dfrac{v^2-u^2}{2}}$

Explanation:

Given,

A train passes by a pole with uniform acceleration ‘a’.

Its front end when passes by it has speed ‘u’ and its back end when passes by it has speed ‘v’.

To find:  speed of the midle pa-rt when it passes by the pole?

Solution:

It is attached. Please have a look.

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