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A projectile is shot from the ground at a velocity of #28 m/s# and at an angle of #(pi)/2#. How long will it take for the projectile to land?

1 Answer

Mar 30, 2016

#t=5,71 " s"#

Explanation:

#v_i=28 " m/s"#
#if alpha=(pi/2) " ; "sin (pi/2)=1#

#t=(2*v_i*sin alpha)/g#

#t=(2*28*1)/(9,81)#

#t=5,71 " s"#

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