Are the statements below correct? a) 1. Considering two different ways in the figure to push two identical heavy boxes to move, case a) is less strenuous than case b) because it has b) 2. With the presence of kinetic friction, an object pulled by gravity can no 3. If a round object undergoes pure rolling downhill on an inclined plane, the gravitational 4. If a round object undergoes pure rolling downhill on an inclined plane, the friction force smaller kinetic friction. longer slide down an inclined plane at a constant acceleration force exerts zero torque on the object. tends to accelerate the rotational motion of the object