Question

An engine of a train moving with uniform acceleration passes an electric pole with velocity 6 m/s and the last compartment with velocity 8 m/s. The middle point of the train passes the same pole with a velocity
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Answer 1

this is your required answer

Answer 2

Answer:

length of train :- l

When last compartment passes through pole distance covered by first compartment is l

∴v

2

=u

2

+2al

∴a=

2l

v

2

−u

2

Now, when middle post passes, distance covered by first compartment is

2

l

∴v

f

2

=u

2

+

2

Ral

=u

2

+(

2l

v

2

−u

2

)l=

2

v

2

+u

2

∴v

f

=

2

v

2

+u

2

Explanation:

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