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jbutl3r25
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Horizontal Projectile Motion Question...please help!
1. A ball is thrown horizontally from the top of a building 22.8 m. high. The ball strikes the ground at a point 52.1 m. from the base of the building.
a. Find the time the ball is in motion.
b. Find the initial velocity of the ball.
c. Find the x component of its velocity just before it strikes the ground.
d. Find the y component of its velocity just before it strikes the ground.
2. vx =
dx=52.1
t
vfY
voY = 0
aY = -9.8 (gravity)
dY= -22.8
t
3. I found the time to be 2.16 s., but the rest is tricking me up. The answer to b can't be zero can it? I don't understand that part, and I'm just at a loss for how to find the x and y components. So please...can anybody give me some help here?
1. A ball is thrown horizontally from the top of a building 22.8 m. high. The ball strikes the ground at a point 52.1 m. from the base of the building.
a. Find the time the ball is in motion.
b. Find the initial velocity of the ball.
c. Find the x component of its velocity just before it strikes the ground.
d. Find the y component of its velocity just before it strikes the ground.
2. vx =
dx=52.1
t
vfY
voY = 0
aY = -9.8 (gravity)
dY= -22.8
t
3. I found the time to be 2.16 s., but the rest is tricking me up. The answer to b can't be zero can it? I don't understand that part, and I'm just at a loss for how to find the x and y components. So please...can anybody give me some help here?