A 35kg object is moving in a straight line at 2m/s. A force of 825N and a resistive force 175N act on the object for time of 6s. What will the final velocity of the object be?

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.