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If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy
If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy? (2019)
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If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy? (2019)
25 J
50 J
100 J
200 J
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Kinetic Energy = 0.5 × Mass × Velocity² = 0.5 × 5 kg × (10 m/s)² = 250 J.
Questions & Step-by-step Solutions
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Q
Q: If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy? (2019)
Solution:
Kinetic Energy = 0.5 × Mass × Velocity² = 0.5 × 5 kg × (10 m/s)² = 250 J.
Steps: 8
Show Steps
Step 1: Identify the mass of the object. In this case, the mass is 5 kg.
Step 2: Identify the velocity of the object. Here, the velocity is 10 m/s.
Step 3: Write down the formula for kinetic energy: Kinetic Energy = 0.5 × Mass × Velocity².
Step 4: Substitute the mass and velocity into the formula: Kinetic Energy = 0.5 × 5 kg × (10 m/s)².
Step 5: Calculate the square of the velocity: (10 m/s)² = 100 m²/s².
Step 6: Multiply the mass by the squared velocity: 5 kg × 100 m²/s² = 500 kg·m²/s².
Step 7: Multiply by 0.5: 0.5 × 500 kg·m²/s² = 250 J.
Step 8: Conclude that the kinetic energy of the object is 250 Joules.
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