state gov UP Police Assistant Operator (Radio Cadre) Mock Test General Science Physics Work Power Energy
A boy of mass 50 kg, runs up a staircase of 45 steps in 10s. If the height of each step is 14 cm. find his power. Take g = 10 ms-2
1
315 ms
2
315 W
3
337.5 W
4
310.55 J