contestada

a ball rolls horizontally off a table of height 0.6m with a speed of 9m/s how long does it take the ball to reach the ground

Respuesta :

AL2006

It takes 0.35 second.

Through horizontal speed doesn't matter.


Answer:

it will take 0.35 s to move off

Explanation:

As we know that the ball rolls horizontally on a table of height 0.6 m

so here we can say that in vertical direction the motion is free fall under gravity

so we can say

[tex]y = \frac{1}{2}gt^2[/tex]

[tex]0.6 = \frac{1}{2}(9.8)t^2[/tex]

here we will have

[tex]0.6 = 4.9 t^2[/tex]

[tex]t = 0.35 s[/tex]