Question

a mango fruit droped to the ground from the tip of its tree which is 5m high. how long does it take toreach the ground?

Answer 1

Question#18785

a mango fruit droped to the ground from the tip of its tree which is 5m high. how long does it take to reach the ground?

Solution:

On free falling:

$$H = H _ {0} - \frac {1}{2} g t ^ {2}, \text{ were } H _ {0} = 5 \text{ m}, H = 0, g = 9.8 \text{ m}/s ^ {2}$$ $$\frac {1}{2} g t ^ {2} = H _ {0}$$ $$t = \sqrt {\frac {2 H _ {0}}{g}}$$ $$t = \sqrt {\frac {2 \cdot 5}{9.8}} \approx 1 \text{ sec}$$

Answer: 1 sec