A 2 kg block is placed on a scale in free fall. What will the scale read?
Answer
0 N
The correct answer is 0 N — Step 3: Therefore the scale reads 0 N.
Step-by-step solution
- Step 1: In free fall, the only force acting on the block is gravity, causing the block to accelerate at .
- Step 2: The scale measures the normal force exerted by the block, which is zero in free fall.
- Step 3: Therefore the scale reads 0 N.
Common mistake: Assuming weight remains unchanged during free fall
Concept tested: Weight in free fall
Published · How this solution was prepared and checked
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