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An object of mass 11 kg is moving with a uniform velocity fo 5 ms-1. What is the kinetic energy possessed by the object?

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RRC Group D Previous Paper 38 (Held On: 10 Oct 2018 Shift 2)
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  1. 17.5 J
  2. 137.5 J
  3. 137.5 ms
  4. 180.5 J

Answer (Detailed Solution Below)

Option 2 : 137.5 J
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Detailed Solution

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The correct answer is 137.5 J.

  • Given, mass (m) = 11 kg, velocity (v) = 5 ms-1.
    Kinetic energy =
    So, the kinetic energy of the object is J.

Key Points

  • It is the energy of object mass in motion.
  • When an objects' mass doubles, its kinetic energy also doubles.
  • When an objects' speed doubles, its kinetic energy quadruples.
  • When a pendulum goes uphill (top point), it loses kinetic energy.

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