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10478663Doing practice physics questions and I do not understand how

to do these questions dealing with projectile motion

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Examples:
1. A tennis ball is thrown horizontally from the top of a water tower and lands
20.0m from the base of the water tower. If the tennis ball is initially thrown
at a velocity of 10.0m/s, determine the height of the water tower?
2. A soccer player, running on a level playing field, kicks a soccer ball with a
velocity of 9.4 m/s at an angle of 40 above the horizontal. Determine the
soccer ball's maximum height and horizontal displacement. State the soccer
ball's final velocity before making contact with the ground.
3. As part of a physics investigation, a student launches a beanbag out of an
open window with a velocity of 4.5 m/s at an angle of 250 above the
horizontal. If the window is 12m above the ground, determine how far away
from the building must the student's friend stand to catch the beanbag at
ground level? Determine the final velocity of the bean bag just before it is
caught.
Practice:
4. An archer shoots at a target 60 m away. If she shoots at a velocity of 55m/s
[right] from a height of 1.5 m, does the arrow reach the target before striking
the ground? Provide numerical evidence to justify your answer What should
the archer do to get her next shot on target?
5. A superhero launches himself from the top of a building with a velocity of
7.3 m/s as an angle of 250 above the horizontal. If the building is 17 m high,
determine how far will he travel horizontally before reaching the ground?
Determine his final velocity.
[15 m, 20 ms"] 70 below the hor.]
6. A championship golfer uses a nine iron to chip a shot right into the cup. If
the golf ball is launched at a velocity of 20 ms" at an angle of 450 above the
horizontal, how far away was the golfer when he hit the ball? Determine the
maximum height the ball reached? [41m, 10m]

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