Exam-style question
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A ball is dropped from a height of 20 meters. Calculate the acceleration due to gravity (g) using the free fall method. Assume air resistance is negligible.
Model answer
What a good answer should say
- The acceleration due to gravity is 9.81 m/s².
Explanation
Why this works
This question tests the understanding of the free fall method to determine g. By applying the formula for gravitational acceleration and substituting the height and time taken for the fall, students can calculate the value of g accurately.
Common mistake
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