Answer to Question #19395 in Mechanics | Relativity for Sierra

Question

an object weight 712.0 N is is being pushed along a horizontaL surface by a 440.0 N force. what is the mass of the object? how would you find that? what is newton force? how do you use it in this situation? is it really needed to find the mass of the object?

Answer 1

F=712 N
F=mg
m=712/9.8=72.6 kg
Newton force -F-mg=712-440=272. We don't need to find mass, because we don't use it