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Question 5122
NEET Physics · Medium

Basic Mathematics & Vectors: Dot Product Applications MCQ

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Dot Product ApplicationsMediumQuestion 5122

Question

The work done by force F = 3î + 4ĵ N through displacement s = 2î + 5ĵ m is:
  1. A
    26 J
    Correct
  2. B
    22 J
  3. C
    14 J
  4. D
    6 J

Correct answer

26 J

Explanation

W = F·s = (3)(2) + (4)(5) = 6 + 20 = 26 J.

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