Experiment: Newton's First Law
Questions:
Explain how your observations of the water demonstrate Newton's law of inertia.
Draw a free body diagram of your box of water from the situation. Draw arrows for the force of gravity, the normal force (your hand pushing up on the box), and the stopping force (your hand decelerating the box as you stop.) What is the direction of the water's acceleration?
Can you think of an instance when you are driving or riding in a car that is similar to this experiment? Describe two instances where you feel forces in a car in terms of inertia.