practice

  1. A laser beam is aimed 15.95° above the horizontal at a mirror 11,648 m away. It glances off the mirror and continues for an additional 8570. m at 11.44° above the horizon. What is the resultant displacement of the beam?
  2. Three forces act on a point: 3 N at 0°, 4 N at 90°, and 5 N at 217°. What is the net force?
  3. A cyclist heads due west on a straight road. A northeast wind is blowing at 10 m/s.
    1. Is this wind more like a headwind or a tailwind?
    2. What is the effective speed of this headwind/tailwind?
  4. One unfortunate winter day I happened to slip on an icy ramp inclined 30° to the horizontal. Find my acceleration down the ramp given that the acceleration due to gravity points straight down and has a value of 9.8 m/s2. (Assume the ice is perfectly frictionless.)

conceptual

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numerical

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algebraic

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calculus

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statistical

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investigative

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worksheets

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