Rock 2 Rock 3 45° 45° ho Three identical rocks are launched with identical speeds from the top of a platform of height ho. The rocks are launched in the directions indicated above. 20. Which of the following correctly relates the magnitude vy of the vertical component of the velocity of each rock immediately before it hits the ground? (A) (v,1 = v,2) > v;3

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Chapter4: Motion In Two And Three Dimensions
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#20 AP Physics 1 question attached.

Rock 1
Rock 2
Rock 3
ロ
45°
45°
ho
Three identical rocks are launched with identical
speeds from the top of a platform of height ho. The
rocks are launched in the directions indicated above.
20. Which of the following correctly relates the
magnitude v, of the vertical component of the
y
velocity of each rock immediately before it hits
the ground?
(A) (v,1 = vy2) > vy3
(B) vy > Vy3 > Vy2
(C) vy2 > Vy3 > Vyl
(D) Vyl = = Vy3
V y2
%3D
Transcribed Image Text:Rock 1 Rock 2 Rock 3 ロ 45° 45° ho Three identical rocks are launched with identical speeds from the top of a platform of height ho. The rocks are launched in the directions indicated above. 20. Which of the following correctly relates the magnitude v, of the vertical component of the y velocity of each rock immediately before it hits the ground? (A) (v,1 = vy2) > vy3 (B) vy > Vy3 > Vy2 (C) vy2 > Vy3 > Vyl (D) Vyl = = Vy3 V y2 %3D
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