A bird flies 2.8 due west and then 2.7 due north. Another bird flies 2.7 due west and 2.8 due north. What is the angle between the net displacement vectors for the two birds?

Question

Physics

Maritza Price

27 October, 15:33

A bird flies 2.8 due west and then 2.7 due north. Another bird flies 2.7 due west and 2.8 due north. What is the angle between the net displacement vectors for the two birds?

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Answers (1)

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Journey Bradshaw · Answer 1

Assume a 2D plane and both the birds start at origin. + X is east, - X is west, + Y is North, - Y is South.

So, after travel position of bird1 is (-2.8, 2.7) and bird2 is (-2.7,2.8);

slope of bird1 is 2.8/2.7

slope of bird2 is 2.7/2/8

Now we have two solpes b1 and b2

formula = (b2-b1) / (1+b1*b2);