As shown in the diagram below, a baseball is thrown with an original speed of 50.0 m/s and at an angle of e = 30° above the horizontal. A vertical stack of bricks is located at a distance of d-86.6 m (horizontally) to the right from the release point of the baseball. Assume that the baseball has negligible radius.

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Chapter6: Motion In Two Dimensions
Section: Chapter Questions
Problem 41A
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speed of 50.0 m/s and at an angle of 0 = 30° above the horizontal. A vertical stack of
bricks is located at a distance of d-86.6 m (horizontally) to the right from the release
point of the baseball. Assume that the baseball has negligible radius.
As shown in the diagram below, a baseball is thrown with an original
Show that the initial (original) velocity vector can be written in unit-vector
notation as v, = (43.31 + 25.09) m/s, where the positive x-direction has been taken to
be horizontal and towards the brick wall, while the positive y -direction has been taken to
be upwards.
(b)
(a)
%3D
How far above (or below) the horizontal level of release does the baseball hit the
wall? [HINT: Show that the time that it takes the baseball to hit the wall is
approximately 2 seconds.]
(c)
What are the horizontal (v,) and vertical (v,) components of the velocity vector
of the baseball just before it strikes the wall?
Knowing the sign of v, calculated above, has the baseball passed the highest
point in its trajectory? Explain.
horizontal +x axis) does the baseball hit the wall?]
(d)
At what angle (with respect to the
Transcribed Image Text:speed of 50.0 m/s and at an angle of 0 = 30° above the horizontal. A vertical stack of bricks is located at a distance of d-86.6 m (horizontally) to the right from the release point of the baseball. Assume that the baseball has negligible radius. As shown in the diagram below, a baseball is thrown with an original Show that the initial (original) velocity vector can be written in unit-vector notation as v, = (43.31 + 25.09) m/s, where the positive x-direction has been taken to be horizontal and towards the brick wall, while the positive y -direction has been taken to be upwards. (b) (a) %3D How far above (or below) the horizontal level of release does the baseball hit the wall? [HINT: Show that the time that it takes the baseball to hit the wall is approximately 2 seconds.] (c) What are the horizontal (v,) and vertical (v,) components of the velocity vector of the baseball just before it strikes the wall? Knowing the sign of v, calculated above, has the baseball passed the highest point in its trajectory? Explain. horizontal +x axis) does the baseball hit the wall?] (d) At what angle (with respect to the
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