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A projectile is shot from the ground at a velocity of #8 m/s# and at an angle of #(3pi)/4#. How long will it take for the projectile to land?

1 Answer

Apr 11, 2016

#t_e=1,15 " s"#

Explanation:

enter image source here
#"given data:"#
#alpha=(3pi)/4" projectile angle"#

#v_i=8 m/s " initial velocity of object"#
#g=9,81 m/s^2#

#t_e=?" time elapsed"#

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

#t_e=(2*8*0,707)/(9,81)#

#t_e=1,15 " s"#

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