Tim uses a spring balance to pull a block across a rough table. The reading on the spring balance is 5N, but the block does not move. What is the frictional force acting on the block?
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Worked Solution
Step 1: Tim is applying a 5N force.Step 2: The block remains stationary (does not move).Step 3: This means the forces are balanced.Step 4: The frictional force must be equal and opposite to the pulling force.
Correct answer: 5N
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