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If a 5 kg object is moving with a speed of 10 m/s, what is its total mechanical
If a 5 kg object is moving with a speed of 10 m/s, what is its total mechanical energy assuming no potential energy?
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If a 5 kg object is moving with a speed of 10 m/s, what is its total mechanical energy assuming no potential energy?
250 J
500 J
100 J
50 J
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Total Mechanical Energy = Kinetic Energy = 0.5 * m * v² = 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 speed of 10 m/s, what is its total mechanical energy assuming no potential energy?
Solution:
Total Mechanical Energy = Kinetic Energy = 0.5 * m * v² = 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 (m) is 5 kg.
Step 2: Identify the speed of the object. Here, the speed (v) is 10 m/s.
Step 3: Use the formula for kinetic energy, which is KE = 0.5 * m * v².
Step 4: Substitute the values into the formula: KE = 0.5 * 5 kg * (10 m/s)².
Step 5: Calculate (10 m/s)², which equals 100 m²/s².
Step 6: Multiply 5 kg by 100 m²/s² to get 500 kg*m²/s².
Step 7: Multiply 500 kg*m²/s² by 0.5 to get 250 J.
Step 8: Conclude that the total mechanical energy is 250 J.
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