A 5 kg body is projected vertically upward with a speed of 20 m/s. Calculate the maximum height reached (take g = 9.8 m/s²).
Explanation
To calculate the maximum height reached, we can use the equation v² = u² + 2gh, where v is the final velocity (0 m/s at maximum height), u is the initial velocity (20 m/s), g is the acceleration due to gravity (9.8 m/s²), and h is the height. Since the body is projected vertically upward, the maximum height will be reached when the final velocity becomes 0. Plugging in the values, we get 0² = 20² + 2 * 9.8 * h, which simplifies to h = 20² / (2 * 9.8) = 20.41 m.
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