Kinetic Energy

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Kinetic Energy
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Kinetic Energy

• Kinetic Energy is the energy due to the motion
  of an object.
• KE ½ m x v2
• KE Kinetic Energy Joule (J)
• m mass kilogramme (kg)
• v speed metre/second (m/s)

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Example (1)

• A person of mass 60 kg walks at a speed of 2
  m/s. Calculate the Kinetic Energy.
• KE ½ m x v2
• ½ 60 x 22
• KE 120 J

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Example (2)

• A ball of mass 200 g is moving at a speed of 40
  cm/s. Calculate the Kinetic Energy.
• KE ½ m x v2
• KE ½ x 0.2 x (0.4)2
• KE 0.016J