A wooden block was pulled across four different surfaces using a spring balance. The force required to move the block is shown below. Which surface is likely the roughest?
Show Worked Solution
Worked Solution
Step 1: Identify that the force measured by the spring balance overcomes friction.
Step 2: Rougher surfaces create more friction.
Step 3: Surface X requires the greatest force (12 N), indicating it has the most friction and is the roughest.
Correct answer: Surface X (12 N)
Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.
Start Free Trial — 7 Days Free