state gov UP Police Assistant Operator (Radio Cadre) Mock Test Physics Work Power and Energy Conservation of Mechanical Energy
A train moving with a velocity of 30 km/h has a kinetic energy of 52000 J. When the velocity of train is increased to 60 km/h, the work done is:
1
Work done = 0
2
156000 J
3
104000 J
4
52000 J