Answer:
(a) v= 9.66 units
(b) α = -39.12°
α = 39.12° below the positive axis of the x
Step-by-step explanation:
Data
vx = 7.50 units
vy = -6.10 units
(a)Calculation of the magnitude of v


v= 9.66 units
(b)Calculation of the direction of v


α = -39.12°
α = 39.12° below the positive axis