A train of mass 50000kg initially running at a velocity of 72km/hr, when breaks are applied its velocity changed to 32km/hr.calculate the work done by the breaks

A train of mass 50000kg initially running at a velocity of 72km/hr, wh

1.	A train of mass 50000kg initially running at a velocity of 72km/hr, when breaks are applied its velocity changed to 32km/hr.calculate the work done by the breaks
Answer» MASS of train=50000kg initial velocity=72km/h×5/18=20m/s final velocity=32km/h×5/18=8.89m/s speed decrease by breaks=20-8.89 =11.11m/s according to question WORK done=energy possess work done=1/2×m×v×v work done=1/2×50000×11.11×11.11 work done=3085802.5J HOPE THIS ANSWER WILL HELP YOU AND MAKE YOU UNDERSTAND GOOD LUCK

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A train of mass 50000kg initially running at a velocity of 72km/hr, when breaks are applied its velocity changed to 32km/hr.calculate the work done by the breaks

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