- #1

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Here is the problem (Q3 (A));

Here's what I have so far;

Any help would be appreciated, thank you!

Here's what I have so far;

Any help would be appreciated, thank you!

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- Thread starter Aaron Curran
- Start date

- #1

- 33

- 0

Here is the problem (Q3 (A));

Here's what I have so far;

Any help would be appreciated, thank you!

Here's what I have so far;

Any help would be appreciated, thank you!

- #2

RUber

Homework Helper

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Also, I would first find your time of impact based on your horizontal component.

With that time of impact, you can make an expression that is in terms of alpha only.

- #3

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Also, I would first find your time of impact based on your horizontal component.

With that time of impact, you can make an expression that is in terms of alpha only.

Yes I realised this after I posted, I'll try that, thanks!

- #4

RUber

Homework Helper

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part b comes right out of part a if you have already solved for time of impact.

- #5

TSny

Homework Helper

Gold Member

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Something else to note: If you have the expression ##\tan \alpha = \frac{A}{B}##, then you cannot conclude that ##\sin \alpha = A## and ##\cos \alpha = B##.

- #6

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part b comes right out of part a if you have already solved for time of impact.

Could you elaborate on this a bit? Not quite sure what you mean..

- #7

RUber

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Use sin = sqrt(1-cos^2) to convert everything in terms of cos.

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