An object is dropped from height. It moves through a distance of 24.5m in the last second before hitting the ground. Find the height from which it was dropped? Correctly explain answer.
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Answer:
30.625
Explanation:
Given, An object is "dropped" which means that the initial velocity is 0, It moves through a distance of 24.5m in the last second which means that at the last second the final speed was 24.5. We also know that the acceleration due to gravity is 9.8
Also, v² - u² = 2as
Putting all the numbers in the equation we get,
24.5² - 0² = 2 × 9.8 × distance
600.25 = 19.6 × distance
Distance = 30.625
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