# An object is thrown vertically from a height of #3 m# at #3 m/s#. How long will it take for the object to hit the ground?

##### 1 Answer

Feb 19, 2016

time = 1.6 sec

#### Explanation:

The object is thrown from a height 8m, when it reaches at ground its displacement h= - 8m, its initial upward velocity u = 3m/s

if acceleration due to gravity g is taken as -10

Or. -8 = 3t -0.5x10x

Or

Or

so feasible solution is t = 8/5 = 1.6 s