Aman of mass 50kg ascends a flight of stairs 5m high in 5 seconds. if acceleration due to gravity is 10ms-2, the power expended is

Tons?

Is there any opitions? if you have the periodic table, the noble gases are 8a family, the halogen are the 7a family, and the nonmetal are  carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, fluorine, chlorine, bromine, iodine and astatine.

Answerapply an acl that has all deny ace statement;