Horizontal range

  • Thread starter Yoruichi
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  • #1
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Homework Statement


A ball is thrown at angles 45° and 30° above the horizontal with the same initial speed. What multiple of the horizontal range at angle 30° is that at angle 45°?

Homework Equations


Trigonometry formula

The Attempt at a Solution


I think that first step is to divide the initial speed into horizontal component and vertical component.
Let the initial speed be u
Horizontal speed of 30° angles : u x cos 30° = 1 / 2 u
Horizontal speed of 45° angles : u x cos 45° = √2 / 2 u

After this I'm not sure what to do next.. Since the question didn't provide time, I can't use the kinetic equation formula.
Can anyone give me a hint about what should I do next?
 

Answers and Replies

  • #2
haruspex
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What do you think "horizontal range" means?
 
  • #3
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What do you think "horizontal range" means?
Horizontal distance traveled..
Oh wait, I think I get something..
*edit
 
  • #4
haruspex
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Horizontal distance traveled..
Oh wait, I think I get something..
*edit
Horizontal distance travelled between two points having what relationship?
 

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