Question Detail
Question
A ball falls from a nest at a height of 4 m. What speed will it have when it is 1 m from the ground? Neglect air resistance and take g = 9.8 m/s².
Correct Answer
Option D is the correct answer.
Detailed Explanation
Using v² = u² + 2gh, with u=0, h = 3 m (from 4 m to 1 m). v = √(2×9.8×3) = √58.8 = 7.67 m/s.
Hint
v² = 2gh, where h is distance fallen.