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If a 2 kg object is moving with a velocity of 15 m/s, what is its kinetic energy

Practice Questions

Q1
If a 2 kg object is moving with a velocity of 15 m/s, what is its kinetic energy?
  1. 225 J
  2. 150 J
  3. 300 J
  4. 450 J

Questions & Step-by-Step Solutions

If a 2 kg object is moving with a velocity of 15 m/s, what is its kinetic energy?
  • Step 1: Identify the mass (m) of the object. In this case, m = 2 kg.
  • Step 2: Identify the velocity (v) of the object. Here, v = 15 m/s.
  • Step 3: Use the formula for kinetic energy: Kinetic Energy = 1/2 * m * v^2.
  • Step 4: Substitute the values into the formula: Kinetic Energy = 1/2 * 2 kg * (15 m/s)^2.
  • Step 5: Calculate (15 m/s)^2, which is 225 m^2/s^2.
  • Step 6: Multiply 2 kg by 225 m^2/s^2 to get 450 kg*m^2/s^2.
  • Step 7: Now, multiply by 1/2: Kinetic Energy = 1/2 * 450 kg*m^2/s^2 = 225 J.
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