Asked by Shannon
An arrow is shot into the air at an angle of 59.4° above the horizontal with a speed of 20.0 m/s. What is the x-component of the velocity of the arrow 3.30 s after it leaves the bowstring?
What is the y-component of the velocity of the arrow 3.30 s after it leaves the bowstring?
What is the x-component of the displacement of the arrow during the 3.30-s interval?
What is the y-component of the displacement of the arrow during the 3.30-s interval?
What is the y-component of the velocity of the arrow 3.30 s after it leaves the bowstring?
What is the x-component of the displacement of the arrow during the 3.30-s interval?
What is the y-component of the displacement of the arrow during the 3.30-s interval?
Answers
Answered by
Henry
Vo = 20m/s[59.4o]
Xo = 20*cos59.4 = 10.18 m/s.
Yo = 20*sin59.4 = 17.21 m/s.
X = Xo = 10.18 m/s. Does not change.
Y = Yo+g*t = 17.21 - 9.8*3.30=-15.13 m/s
Downward.
Xo = 20*cos59.4 = 10.18 m/s.
Yo = 20*sin59.4 = 17.21 m/s.
X = Xo = 10.18 m/s. Does not change.
Y = Yo+g*t = 17.21 - 9.8*3.30=-15.13 m/s
Downward.
Answered by
Henry
Dx = Xo*T = 10.18 * 3.30 = 33.6 m.
h = (Y^2-Yo^2)/2g
h = (-15.13)^2-(17.21^2)/-19.6 =
( 228.92-296.18)/-19.6 = 3.43 m. = Y.
h = (Y^2-Yo^2)/2g
h = (-15.13)^2-(17.21^2)/-19.6 =
( 228.92-296.18)/-19.6 = 3.43 m. = Y.
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