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## Homework Statement

A ball is thrown horizontal out of a window 18m above the ground. it is thrown horizontally at 5.0ms. show that it takes about 2 seconds to drop.

## Homework Equations

S=ut+1/2at^2

## The Attempt at a Solution

u=0

a=9.8

s=18

18=0t+1/2*9.8t^2

36=9.8t^2

sqrt3.6734=t

t=1.92

is this near enough too 2 to be the right answer or have i made a mistake some where i was not sure if the horizontal force would have any effect on the time taken to drop. Any help would be much appreciated.