Preliminary questions (Thinking)
1. In pushing a heavy box across the floor, how does the forceyou need to apply to start the box moving compare to the forceneeded to keep the box moving? [1]
2. How is the force of friction related to the weight of thebox? Explain. [1]
3. Does the amount of friction between the box and the floordepend on what the floor is made of? Explain. [1]
Preliminary questions (Thinking) 1. In pushing a heavy box across the floor, how does the force you need to apply to sta
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