They want you to find the average velocity of a car that goes 160 miles north and 120 miles east. they do D = \[\sqrt{(160^2 + 120^2 }\] = 200 miles. Then they do tan^-1 120/160 = 36.87, then 90 - 36.87 = 53.13. WHY do they choose the "90"? because they have chosen different numbers in different problems...

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions.

A community for students.

They want you to find the average velocity of a car that goes 160 miles north and 120 miles east. they do D = \[\sqrt{(160^2 + 120^2 }\] = 200 miles. Then they do tan^-1 120/160 = 36.87, then 90 - 36.87 = 53.13. WHY do they choose the "90"? because they have chosen different numbers in different problems...

Mathematics
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions

velocity is a scalar, not a vector; so directions mean nothing
spose we have an interval from [a,b] such that we know the speed at a; f(a). and we know the speed at b; f(b) the average velocity is then just: f(b)-f(a) ------- b-a
the 90 here would refer to the right angle formed by turning; the other part is the angle of the tangent of the 2 distances; but i got no idea how that relates to avg. velocity ...

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

but in other similar problems, they use numbers like 180, and sometimes that add instead of subtracting...

Not the answer you are looking for?

Search for more explanations.

Ask your own question