PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
Two wheelbarrows look the same, but one is empty while the other is filled with bricks. The empty wheelbarrow has a mass of 15 kg and the loaded wheelbarrow has a mass of 45 kg.
(i) If the gardener wants each wheelbarrow to start moving with the same acceleration, explain which wheelbarrow will require the larger applied force.
(ii) Suppose both wheelbarrows are rolling on a smooth path at the same speed and the gardener applies the same braking force to each. Predict which wheelbarrow will come to rest first and support your answer with calculations.
(iii) Relate your findings to the concept of inertia.