A 254kg box is pulled at a constant speed by the little engine. The box moves a distance of 3.0 m across the horizontal surface. (μ=.20)
How much energy is transferred by the engine? (How much WORK is done?)
what is the answer in joules?
energy and work are the same thing.
work=energy=force*distance=mu*mg*distance
= .2*254*9.8*3.0 Joules