A jogger travels a route that has two parts. The first is a displacementAof 2.90 km due south, and the second involves a displacementBthat points due east.for part1:(1) The resultant displacement A + B has a magnitude of 4.55 km. What is the magnitude ofB?

What is the direction ofA + Brelative to due south?

(2) Suppose thatA - Bhad a magnitude of 4.55 km. What then would be the magnitude ofBand what is the direction ofA - Brelative to due south?

direction ofA - Brelative to due south

B=

B=

B= 5.395 km

some how that answer is wrong, can someone explain?