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- Sep 28th 2008, 02:52 AMyzc717displacement vector problem
- Sep 28th 2008, 07:38 AMo_O
Since the airplane is travelling at a constant height, then your j component stays the same.

Now, you know that the airplane is travelling at a constant velocity. You are given that in 30 seconds, it travels $\displaystyle 9.24 \cdot 10^3$ metres. So, $\displaystyle v = \frac{d}{t} = \frac{9.24 \cdot 10^3 \ \text{metres}}{30.0 \ \text{s}} = 308 \ ms^{-1}$

So how far will it have travelled in 70 seconds? This will be your i-component.

Now use that position vector and find its magnitude and angle with respect to the x-axis. - Sep 28th 2008, 12:47 PMyzc717Quote:

Originally Posted by**skeeter**

i still have it wrong

21560 m

it tells me Your answer is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. - Sep 28th 2008, 01:47 PMo_O
Show us what you have done. It should work out.

- Sep 28th 2008, 02:11 PMyzc717