An 80-kg steel box is resting on a frozen pond. You begin to push on it until it just starts to move. If you maintain the same force when it starts to move, what acceleration will the box have?
a) The acceleration will depend on the coefficient of friction between the steel box and the frozen pond.
b) The acceleration will be equal to the applied force divided by the mass of the steel box.
c) The acceleration will be zero, as the steel box was initially at rest on the frozen pond.
d) The acceleration will be difficult to predict without knowing the exact conditions of the frozen pond and the surface of the steel box.