Engineering Board Exam Reviewer · Engineering Mechanics · hard

A projectile is launched with an initial speed of 26 m/s at an angle of 40° above the horizontal. Neglecting air resistance, what is its horizontal range? (g = 9.81 m/s2)

  1. 44.29
  2. 2.61
  3. 135.72
  4. 67.86

Answer

D. 67.86

Solution

Range R = (v02 (2 )) / g = (262 × (80°)) / 9.81 = 67.86 m.

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