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?

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Answer 1 · 2018-06-09T07:35:23

$"0 m/s"$

Initial vertical component of velocity is

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

Use equation of motion $"v = u + at"$ along vertical direction

$"v"_y = "u"_y + "a"_y"t"$

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

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

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