6. A ball is thrown horizontally from the roof of a building 7.5 m tall and lands 9.5 m from the base of the building( dx = 9.5 m.) What was the balls initial speed?

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Chapter2: Motion In One Dimension
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6. A ball is thrown horizontally from the roof of a building 7.5 m tall and lands 9.5 m from
the base of the building( dx = 9.5 m.) What was the balls initial speed?
7. An arrow is shot at an angle of 37.0⁰ a velocity of 20 m/s. If it is shot from a height
of 1.80 m calculate; (a) initial x and y velocities (b) the maximum height the arrow
reaches and (c) how far the arrow travels in the horizontal direction before returning the
same height from which it was shot(dx).
8. In the physics lab students fire a ball from the projectile launcher with a velocity of 4.00
m/s @ <20.0° above the horizontal. If the ball hits the floor 0.600 seconds later what is
the height of the table and the range of the ball?
range
Transcribed Image Text:6. A ball is thrown horizontally from the roof of a building 7.5 m tall and lands 9.5 m from the base of the building( dx = 9.5 m.) What was the balls initial speed? 7. An arrow is shot at an angle of 37.0⁰ a velocity of 20 m/s. If it is shot from a height of 1.80 m calculate; (a) initial x and y velocities (b) the maximum height the arrow reaches and (c) how far the arrow travels in the horizontal direction before returning the same height from which it was shot(dx). 8. In the physics lab students fire a ball from the projectile launcher with a velocity of 4.00 m/s @ <20.0° above the horizontal. If the ball hits the floor 0.600 seconds later what is the height of the table and the range of the ball? range
VIS
does it
far down the river will the boat be?
1.9 m/s
IV
BW
Ongle of VBW = √/195²-1.25ª
ano V₁w=11,43 m/s
1.25m/5
tan" (13) ZE53 N
t = d
Yes
Projectile motion.
All problems are solved with the assumption there is no air resistance.
***Be aware of directions +
And we all know that ax = 0
ay = -9.80 m/s² etile lour
"BW
5. A diver running 2.50 m/s dives out horizontally from the edge of a vertical cliff and
reaches the water 3.0 seconds later. How high is the cliff and how far from its base, did
the diver hit the water?
Transcribed Image Text:VIS does it far down the river will the boat be? 1.9 m/s IV BW Ongle of VBW = √/195²-1.25ª ano V₁w=11,43 m/s 1.25m/5 tan" (13) ZE53 N t = d Yes Projectile motion. All problems are solved with the assumption there is no air resistance. ***Be aware of directions + And we all know that ax = 0 ay = -9.80 m/s² etile lour "BW 5. A diver running 2.50 m/s dives out horizontally from the edge of a vertical cliff and reaches the water 3.0 seconds later. How high is the cliff and how far from its base, did the diver hit the water?
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