Homework Help: physical

Posted by Anonymous on Saturday, October 13, 2012 at 9:05pm.

Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30 km due north. If it is to then walk directly to B, (a) how far (in km) and (b) in what direction should it walk (relative to the positive direction of the x axis within the range (-180°, 180°])?

physical - Henry, Sunday, October 14, 2012 at 9:04pm
d = 21km@255o + 30km@90o + 8km@0o.

X = hor. = 21*cos255 + 8 = 2.56 km.
Y = Ver. = 21*sin255 + 30*sin90=9.72 km.

a. d^2=X^2 + Y^2=(2.56)^2 + (9.72)^2=101
d = 10.1 km.

tanA = Y/X = 9.72/2.56 = 3.79688
A = 75.2o,CCW = 75.2o North of East = The Direction.

Answer this Question

Related Questions

physics - Oasis B is a distance d = 9 km east of oasis A, along the x axis shown...
maths - Starting from one oasis, a camel walks 25km in a direction 30 degrees ...
socials - what makes an oasis an oasis?
social - what is an oasis
geography - how is an oasis formed
sosial studies - what's an oasis?
social studies - why do we have laws and rules?
oceanography - 1. How much of the total water at earth's surface is fresh ...
physical - A car is driven east for a distance of 43 km, then north for 25 km, ...
eq - Desert is to oasis as ocean is to (A) water. (B) sand. (C) sea. (D) island.

For Further Reading

First Name:
School Subject:
Answer: