Find the initial velocity if the angle, horizontal distance and the vertical distance is given?

  • #1

Homework Statement


how can you find the initial velocity if the angle, horizontal distance and the vertical distance is given?


Homework Equations





The Attempt at a Solution



every equation i use gives me a different answer so i have no clue which one is correct
 
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Answers and Replies

  • #2
hage567
Homework Helper
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You will usually need to use more than one equation. Based on the situation some will be more useful than others. It would be best if you posted a specific question because we have no idea what concepts you may not be applying properly to your problem.
 
  • #3
a ball player hits a home run and the baseball just clears a wall 21 m high located 130m from home plate. The ball is hit at an angle of 35 degrees to the horizontal and air resistance is negligible. Assume the ball is hit at a height of 1 m above the ground. What is the initial speed, time and the components of velocity of the ball?

- to find the initial velocity i used the range equation to solve for Vi since i have the range which is 130m. but the answer i got is wrong.
 

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