The velocity of object 1 in component form is (overrightarrow{mathbf{v}}_{1}=(+2.0 mathrm{~m} / mathrm{s}) hat{mathbf{x}}+(-4.0 mathrm{~m} / mathrm{s})

Question:

The velocity of object 1 in component form is $\overrightarrow{\mathbf{v}}_{1}=(+2.0 \mathrm{~m} / \mathrm{s}) \hat{\mathbf{x}}+(-4.0 \mathrm{~m} / \mathrm{s}) \hat{\mathbf{y}}$. 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?

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