# A projectile is projected with speed of 19.6 m/s with angle 30 degrees.what is the verticle component of it's velocity after 1sec of flight?

Jun 9, 2018

$\text{0 m/s}$

#### Explanation:

Initial vertical component of velocity is

$\text{u"_y = 19.6\ "m/s" × sin30 = "9.8 m/s}$

Use equation of motion $\text{v = u + at}$ along vertical direction

$\text{v"_y = "u"_y + "a"_y"t}$

color(white)("v"_y) = "9.8 m/s + (– 9.8 m/s"^2 × "1 s)"

color(white)("v"_y) = 0\ "m/s"

It means projectile is at its highest point after $1$ second.