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A vector is described. Express the vector in terms of i and j.A quarterback releases a football with a speed of 36 feet per second at an angle of 60° with the horizontal.v=

A vector is described Express the vector in terms of i and jA quarterback releases a football with a speed of 36 feet per second at an angle of 60 with the hori class=

Respuesta :

see the figure below to better understand the problem

we have

R=36 ft/sec

Find out the components Rx and Ry

Rx=36*cos60

[tex]R_x=36\cdot\frac{1}{2}=18\text{ ft/sec}[/tex]

Ry=36*sin60

[tex]R_y=36\cdot\frac{\sqrt[]{3}}{2}=18\sqrt[]{3}[/tex]

therefore

the answer is

[tex]18i+18\sqrt[]{3}j[/tex]

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