A15.0-m length of hose is wound around a reel, which is initially at rest. the moment of inertia of the reel is , and its radius is 0.160 m. when the reel is turning, friction at the axle exerts a torque of magnitude on the reel. if the hose is pulled so that the tension in it remains a constant 25.0 n, how long does it take to completely unwind the hose from the reel?

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

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