# An object is thrown vertically from a height of #2 m# at #4 m/s#. How long will it take for the object to hit the ground?

##### 1 Answer

Apr 17, 2017

1.4 Sec

#### Explanation:

We know when it attains maximum height it Final velocity will be zero .

so ,

from eq.

time taken to attain maximum height is =

which is =

now distance traveled upward

we get

now it again falls from that height to ground which is

now time taken to hit the ground is taken by eq 2

so we will add (1) and (2) to get our answer we get=