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September 30, 2014

September 30, 2014

Posted by **Neha** on Wednesday, September 3, 2014 at 6:35pm.

the ground speed?

I found Rx and Ry which are 543.23 and 572.22 respectively. To find the angle I took tan^-1 of 572.22/543.23 and got 46. 489 for the angle, but the answer is wrong. R=789 and I got that right so I don't understand why the angle is incorrect.

- Physics -
**Henry**, Friday, September 5, 2014 at 11:45pmVp + 28[0o] = 770[90-48] = 770[42o]CCW

Vp + 28 = 770*cos42 + i770*sin42

Vp + 28 = 572.2 + 515.2i

Vp = 544.2 + 515.2i = 749mi/h[43.6o] CCW

= 749mi/h[46.4o] E of N.

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