rvc
  • rvc
A box is released from a plane moving horiontally with constant velocity "u" from a certain height "h" from the ground takes 5 seconds to reach the ground hitting it at an angle of 75 Determine a) horizontal distance "x" b) the height "h" c) the velocity "u"
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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rvc
  • rvc
|dw:1439693206815:dw|
rvc
  • rvc
@IrishBoy123 @Michele_Laino please help
rvc
  • rvc
@jacalneaila

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Michele_Laino
  • Michele_Laino
If we see the box from an inertial system on the earth, we see that box which is moving along a vertical straight line, and its motion is an accelerated motion due to gravity. So we can write this: \[\Large h = \frac{1}{2}g{t^2} = ...?\] Furthermore, we have: \[\Large h = x\tan 75 \Rightarrow x = \frac{h}{{\tan 75}}\] Finally, for the horizontal motion of the box, we can write: \[\Large x = ut \Rightarrow u = \frac{x}{t}\] |dw:1439704782838:dw|
rvc
  • rvc
thank you so much @Michele_Laino
Michele_Laino
  • Michele_Laino
:)

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