The velocity of object 1 in component form is v-bar = (+2.0 m/s)x-bar + (4.0 m/s) y-bar.

Question:

The velocity of object 1 in component form is v-bar = (+2.0 m/s)x-bar + (–4.0 m/s) y-bar. Object 2 has twice the speed of object 1 but moves in the opposite direction.
(a) Determine the velocity of object 2 in component notation.
(b) What is the speed of object 2?