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Possible engine of train of mass 2.50 to 105 numbers 6 kg changes its velocity for 5 minutes seconds and 5 seconds in 5 minutes

Possible engine of train of mass 2.50 to 105 numbers 6 kg changes its velocity for 5 minutes seconds and 5 seconds in 5 minutes

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Grade:12th pass

1 Answers

Vikas TU
14149 Points
7 years ago
From Work enrgy theorem,
W = change in K.E.
W = 0.5m(v^2 – u^2)
    = 0.5*2.5*10^5(25^2 – 5^2)
    =0.5*2.5*10^5(625 – 25)
    = 1.25*10^5*600
    = 75 * 10^6 Joules.
 
Now Power = > W/t = 75 * 10^6/5*60 = > 75 x 10^6/300 = > 25 x 10^4 Watts.

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