A projectile is shot from the ground at a velocity of $14 m/s$ and at an angle of $(7pi)/12$ . How long will it take for the projectile to land?

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Answer 1 · 2016-02-09T19:52:02

$x_(max)~=-9,9898m$

$alpha=7pi/12*180/pi=105^o$
$x_(max)=(v_i^2*sin2 alpha)/g$
$x_(max)=(14^2*sin210)/(9,81)$
$x_(max)=(196*(-0,5))/(9,81)$
$x_(max)~=-9,9898m$

A projectile is shot from the ground at a velocity of 14 m/s14 m/s and at an angle of (7pi)/12(7pi)/12. How long will it take for the projectile to land?