a boy of mass 50 kg runs up a flight of 40 stairs each measuring 0.25meter in 15 seconds then work done by the bay is= take g equals to 10 p metre per second square
Answers
Answered by
0
Answer:
5000 joules
Step-by-step explanation:
work= FS
= mgS
=50×10×0.25×40
=50×25×4
=1250×4
= 5000
Similar questions