Siti pushed a wooden block across four different surfaces with the same amount of force. She measured the distance moved by the block. On which surface was the frictional force the GREATEST?
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Worked Solution
Step 1: Frictional force opposes motion.
Step 2: A greater frictional force results in the block moving a shorter distance before stopping.
Step 3: Surface C had the shortest distance (10 cm), therefore it had the greatest friction.
Correct answer: Surface C: 10 cm
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