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Concepts Of Physics MCQ Edition [Volume 1]PhysicsIntroduction to Physics

Assuming force, length, and time to be the fundamental quantities, determine the dimensions of energy.

Options

  1. AFL
  2. BFL^2
  3. CF^2L
  4. DFL⁻¹

Correct answer

A. FL

Step-by-step solution

Energy is defined as the capacity to do work, and work is the product of force and displacement. Therefore, the dimensional formula for energy can be written as: [ Energy ] = [ Force ] [ Displacement ] Substituting the fundamental quantities given in the problem, where force is F and length (displacement) is L : [ Energy ] = F L = FL

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