Physics: A stone is thrown downward with a speed of 8 m/s from a height of 14 m. (acceleration due to gravity: 10 m/s2) What is the speed (in m/s) of the stone just before it hits the ground

nurture is the correct answer. Explanation:...

A stone is thrown downward with a speed of 8 m/s

jjjp3993

19.01.2022

The speed of the stone just before it hits the ground is 18.54 m/s

Explanation:

Given that,

Initial speed of the stone, u = 8 m/s

The stone is thrown downward from a height of 14 m

We need to find the speed of the stone just before it hits the ground. It can be calculated using third equation of motion as :

v^2-u^2=2ah

v is the speed of the stone just before it hits the ground

v^2=2ah+u^2

$v^2=2\times 10\times 14+(8)^2$

v = 18.54 m/s

So, the speed of the stone just before it hits the ground is 18.54 m/s. Hence, this is the required solution.

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