Question

When an object is thrown vertically downward its initial velocity is?

Answer 1

Answer:

0m/s because it will start from rest

Answer 2

Answer:

-

$\huge\mathcal\orange{a = g ( - j) = - gj }$

Explanation:

-

$\huge\mathcal\orange{==>}$ we know that when the object falls towards the earth, its experiences acceleration due to gravity $\huge\tt\red{ g = 9.8 ms -2}$ downward ⬇️.

$\huge\mathcal\orange{==>}$ we can choose the co-ordinate system as shown in the figure in up.

$\huge\mathcal\ pink{==>}$ p the acceleration is along the negative y direction.

$\huge\mathcal\orange{a = g ( - j) = - gj }$

$\huge\colorbox{cyan}{THANK YOU}$