Angles in Standard Position?

a windshield wiper has a length of 50 cm . the wiper rotates from its resting position at 30 degrees in standard position to 150 degrees . determine the exact horizontal distance that the tip of the wiper travels in one swipe

The answer is 5(3squared)

Help would really be appreciated please! 😀

1 Answer

  • s k
    9 days ago

    The horizontal position of the tip in resting position is 50cos(30º) cm = 25√3cm.

    The horizontal position of the tip after a full rotation is 50cos(150º) cm = -25√3cm.

    So the horizontal distance traveled is 25√3 – (-25√3) = 50√3cm.

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