Physics
Grade-7
Easy

Question

Identify the correct formula for calculating kinetic energy.

  1. KE space equals space 1 half space mv squared
  2. KE space equals space 2 mv squared
  3. KE = 2mv
  4. KE space equals space 1 half mv

hintHint:

KE = 1/2 mv²

The correct answer is: KE space equals space 1 half space mv squared


    Kinetic energy is directly proportional to the mass of the object and to the square of its velocity, that is, K.E.=1/2 mv².
    If the mass has units of kilograms and the velocity of metres per second, the kinetic energy has units of kilograms metres Squared per second squared.

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