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? Physics 1D Motion Falling Objects 1 Answer ali ergin 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"# Answer link Related questions Question #50365 Question #d6555 What is the definition of free fall? Question #d655d Question #f7a6f An archer shoots an arrow with an initial velocity of 21 m/s straight up from his bow. He... What is the percent difference between the acceleration due to gravity at sea level and at the... What height will a dart achieve 7 seconds after being blown straight up at 50 m/s? How long does a ball take to reach the ground 7 m below, if it is thrown straight up with an... How long does a ball take to fall from a roof to the ground 7 m below? See all questions in Falling Objects Impact of this question 1327 views around the world You can reuse this answer Creative Commons License