- #1

MrDickinson

- 36

- 0

- Homework Statement
- A projectile is fired in such a way that its horizontal range is equal to three times its maximum height. What is the angle of Projection.

- Relevant Equations
- There are no given equations for this problem.

My reasoning and answer is wrong, but I cannot figure out why.

Perhaps it is strange, perhaps not, but I want to figure out why my initial method of solving this problem did yield an incorrect answer.

I began by creating an equation and drawing a right triangle.

x is the horizontal part of the triangle, y is the vertical part of the triangle, h is the hypotenuse.

I wrote the following equation:

(1/3)x=y

multiple both sides by (1/x)

(y/x)=1/3

tan(theta)=1/3

acrtang(1/3)=theta

My solution is wrong, but I don't know why.

Can someone please explain why my reasoning is not correct and doesn't yield the right answer?

Perhaps it is strange, perhaps not, but I want to figure out why my initial method of solving this problem did yield an incorrect answer.

I began by creating an equation and drawing a right triangle.

x is the horizontal part of the triangle, y is the vertical part of the triangle, h is the hypotenuse.

I wrote the following equation:

(1/3)x=y

multiple both sides by (1/x)

(y/x)=1/3

tan(theta)=1/3

acrtang(1/3)=theta

My solution is wrong, but I don't know why.

Can someone please explain why my reasoning is not correct and doesn't yield the right answer?