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A 2 kg object is lifted to a height of 5 m. What is the potential energy gained
A 2 kg object is lifted to a height of 5 m. What is the potential energy gained by the object? (g = 9.8 m/s²)
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Practice Questions
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Q1
A 2 kg object is lifted to a height of 5 m. What is the potential energy gained by the object? (g = 9.8 m/s²)
98 J
19.6 J
39.2 J
49 J
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Potential Energy = mass × g × height = 2 kg × 9.8 m/s² × 5 m = 98 J
Questions & Step-by-step Solutions
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Q
Q: A 2 kg object is lifted to a height of 5 m. What is the potential energy gained by the object? (g = 9.8 m/s²)
Solution:
Potential Energy = mass × g × height = 2 kg × 9.8 m/s² × 5 m = 98 J
Steps: 7
Show Steps
Step 1: Identify the mass of the object. In this case, the mass is 2 kg.
Step 2: Identify the height to which the object is lifted. Here, the height is 5 m.
Step 3: Identify the acceleration due to gravity (g). It is given as 9.8 m/s².
Step 4: Use the formula for potential energy: Potential Energy = mass × g × height.
Step 5: Substitute the values into the formula: Potential Energy = 2 kg × 9.8 m/s² × 5 m.
Step 6: Calculate the result: 2 × 9.8 × 5 = 98 J.
Step 7: Conclude that the potential energy gained by the object is 98 Joules.
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