projectile Motion

[ABP StudeT]

1-aball is tossed from an upper-strory window of building the ball given an in intial velocity8m\s at an angle of 20 below horizontal it strikes the ground 3sec later
a-how far the hoerzintally from the base of the building dies the ball strike the ground
b-find the hight from which the ball was thrown
c-how long does it take the vall to reach apoint 10m below the level of launching


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2-the speed of projectile when it reaches its miximum height is one half its speed when it is at half its maximum height.what is the intial projection angle of the prijectile

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afirefighter adistance d from aburning building directs a stream of water from water a fire hose at angle intial above the horizontal if intial speed of the stream is Vi at what height h dies the water strike the building
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asocer player kicks a rock horizontally off a 40m=heigh cliff into pool of water if the player hears the sound of the splash 3sec later what was the intial speed given th the rock assume that the speed of sound in air is 343m\s





gonna continue

[ABP StudeT]

A basket ball payer who is 2m tall is standing on the floor 10m from the basket if the he shoots the ball at a40 angle with horizontal at what intial speed must be he throw it goes through the hoop without striking backball?the basket hright is 3.05m

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a kier lwaves the ramp of ski jump with avelocity of 10m\s 15 angle above the horzontal the slope is inclined 50angle and air resistance is negligible
a-distance from ramp to where the jumper land
b-velocity components just before the landing(how di you think the results might be affected if air resisance were included
note that jumper lean forward in the shape of an airfoil with their hands at their sides to increase their distance why does this methood work

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