Mary's rat is running along the top of a ledge, 3.2m tall. The rat unknowingly runs off the ledge and lands 5.7m away. How long is the rat in the air?

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west