Question

An apple falls out of a tree from a height of 2.3m. what is the impact speed of the apple

Answer 1

Answer:6.71 m/s

Explanation:

Given

Apple fall from a height of $h=2.3 m$  

We need to find the impact speed of apple which can be given by using

$v^2-u^2=2gh$  

where v=final velocity

u=initial velocity

h=Displacement

Assuming initial velocity to be zero

substituting the value we get

$v^2-0=2\times 9.8\times 2.3$  

$v=\sqrt{2\times 9.8\times 2.3}$  

$v=6.71\ m/s$