# A projectile is shot from the ground at a velocity of #12 m/s# at an angle of #pi/6#. How long will it take for the projectile to land?

##### 1 Answer

May 16, 2016

1.2s

#### Explanation:

Let the velocity of projection of the object be **u** with angle of projection

The vertical component of the velocity of projection is

Now if the time of flight be** T** then the object will return to the ground after T sec and during this T sec its total vertical dosplacement **h** will be zero. So applying the equation of motion under gravity we canh write

In our problem

Hence