Physics: An apple falls out of a tree and takes 1.75 seconds to strike the ground.what was the velocity of the apple when it hit the ground

An apple falls out of a tree and takes 1.75 seconds

Ответ:

natimike10

04.01.2022

$v_f=17.15\frac{m}{s}$

Explanation:

The apple is in free fall, therefore we can use the kinematic equations, especifically the which one that relate final speed to acceleration of gravity and time:

$g=\frac{v_f-v_o}{t}$

The initial speed is zero, since falls out of the tree and recall that $g=9.8\frac{m}{s^2}$ . So, Rewriting for final speed:

$v_f=gt\\v_f=(9.8\frac{m}{s^2})(1.75s)\\v_f=17.15\frac{m}{s}$

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Ответ:

emmalou54

05.09.2021

Physics

answer:

2 m/s

Explanation:

because 2 x 4.55= 11.0

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An apple falls out of a tree and takes 1.75 seconds to strike the ground.what was the velocity of the apple when it hit the ground

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