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  • Kinematics
  • A force of (2i + 3j + 4k) N makes a body to displace thro...
Multiple choice

A force of (2i + 3j + 4k) N makes a body to displace through (3i -2j + 5k) m . The work done is

  1. 20 J

  2. 15 J

  3. 10 J

  4. 5 J

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Work done  = Force . Displacement = (2i + 3j + 4k) . (3i - 2j + 5k) = 6-6+20 = 20 J

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