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December 20, 2014

December 20, 2014

Posted by **Sharefa** on Wednesday, February 29, 2012 at 1:35pm.

**What is the distance between them?

**In what direction should Ricardo walk to go directly toward Jane?

- PHYSICS -
**Steve**, Wednesday, February 29, 2012 at 2:51pmuse law of cosines to get the distance:

d^2 = 28^2 + 10^2 - 2(10)(28)cos60°

= 604

d = 24.58

Let the triangle be TRJ, where R is where Ricardo ended up, T is the tree, and J is where Jane ended up.

To get the angle R, use the law of sines

sinR/10 = sin60°/24.58

sinR = .3523

R = 20.62°

Ricardo needs to walk E 50.62° S

If you have a hard time visualizing that, draw the diagram.

- PHYSICS -
**Sharefa**, Wednesday, February 29, 2012 at 4:50pmit's showing that my answer is wrong.. thanks anyway

i need help pls! the due time is after 12 hours

- PHYSICS -
**Sharefa**, Wednesday, February 29, 2012 at 5:05pmR is right but i want the right answer for the second part ( ricardo needs .... to walk) PLEASE HELP ME

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