What is the dimensional formula for force? (2022)

Practice Questions

Q1
What is the dimensional formula for force? (2022)
  1. [M^1 L^1 T^-2]
  2. [M^1 L^0 T^-2]
  3. [M^0 L^1 T^-1]
  4. [M^1 L^2 T^0]

Questions & Step-by-Step Solutions

What is the dimensional formula for force? (2022)
  • Step 1: Understand that force is defined by Newton's second law of motion, which states that force equals mass times acceleration (F = m * a).
  • Step 2: Identify the dimensions of mass (m). Mass has the dimensional formula [M^1], where M represents mass.
  • Step 3: Identify the dimensions of acceleration (a). Acceleration is defined as the change in velocity over time. Velocity has the dimensional formula [L^1 T^-1] (length over time).
  • Step 4: Since acceleration is the change in velocity over time, its dimensional formula is [L^1 T^-2] (length per time squared).
  • Step 5: Combine the dimensional formulas for mass and acceleration to find the dimensional formula for force. This is done by multiplying the two formulas: [M^1] * [L^1 T^-2].
  • Step 6: The result of the multiplication gives us the dimensional formula for force: [M^1 L^1 T^-2].
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