Help me in my hw, A train starts from rest. Its velocity becomes 90km/hr after 1 min, Calculate the acceleration of train and distance covered by the train. Answer it ASAP​

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.