Since the ball was launched horizontally, we know the vertical component of the initial velocity must be zero. Therefore, vy,o = 0 and vz,0 = Vo. This reduces the projectile motion equations to: y = -}gt x = v,t. and (Keep the negative sign on the right hand side of the first equation, since your measurement of y is negative.) Eliminate the unknown t between these two equations, and obtain an expression for v, in terms of x, y, and g.
Since the ball was launched horizontally, we know the vertical component of the initial velocity must be zero. Therefore, vy,o = 0 and vz,0 = Vo. This reduces the projectile motion equations to: y = -}gt x = v,t. and (Keep the negative sign on the right hand side of the first equation, since your measurement of y is negative.) Eliminate the unknown t between these two equations, and obtain an expression for v, in terms of x, y, and g.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 76P: A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50 km/h,...
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I keep trying to combine these equations but whenever I do so I get a negative in the square root. Please help.
![Since the ball was launched horizontally, we know the vertical component of the initial velocity
must be zero. Therefore, vy,o = 0 and vz,0 = Vo. This reduces the projectile motion equations
to:
y = -}gt
x = v,t.
and
(Keep the negative sign on the right hand side of the first equation, since your measurement of
y is negative.) Eliminate the unknown t between these two equations, and obtain an expression
for v, in terms of x, y, and g.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9beb5ab6-4fd3-4e9c-8c6c-c4109f4c868c%2F4d2ff578-e39a-44c9-bd1e-8a0b5e420774%2Fju0x3iw_processed.png&w=3840&q=75)
Transcribed Image Text:Since the ball was launched horizontally, we know the vertical component of the initial velocity
must be zero. Therefore, vy,o = 0 and vz,0 = Vo. This reduces the projectile motion equations
to:
y = -}gt
x = v,t.
and
(Keep the negative sign on the right hand side of the first equation, since your measurement of
y is negative.) Eliminate the unknown t between these two equations, and obtain an expression
for v, in terms of x, y, and g.
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