Ravi released a block from the top of a ramp. He observed the distance moved by the block on four different surfaces. Which surface likely exerted the GREATEST frictional force?
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Worked Solution
Step 1: Understand that frictional force opposes motion.
Step [2-9]: A higher frictional force results in the block stopping sooner (shorter distance).
Step [2-9]: Surface B resulted in the shortest distance (12cm), meaning it had the highest friction.
Correct answer: Surface B: Block moved 12cm
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