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An object is lifted to a height of 10 m. If the mass of the object is 5 kg, what
An object is lifted to a height of 10 m. If the mass of the object is 5 kg, what is the gravitational potential energy gained? (g = 9.8 m/s²)
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Q1
An object is lifted to a height of 10 m. If the mass of the object is 5 kg, what is the gravitational potential energy gained? (g = 9.8 m/s²)
49 J
98 J
245 J
490 J
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Potential Energy (PE) = mgh = 5 kg * 9.8 m/s² * 10 m = 490 J.
Questions & Step-by-step Solutions
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Q
Q: An object is lifted to a height of 10 m. If the mass of the object is 5 kg, what is the gravitational potential energy gained? (g = 9.8 m/s²)
Solution:
Potential Energy (PE) = mgh = 5 kg * 9.8 m/s² * 10 m = 490 J.
Steps: 7
Show Steps
Step 1: Identify the mass of the object. In this case, the mass (m) is 5 kg.
Step 2: Identify the height to which the object is lifted. Here, the height (h) is 10 m.
Step 3: Identify the acceleration due to gravity. The value of g is given as 9.8 m/s².
Step 4: Use the formula for gravitational potential energy (PE), which is PE = mgh.
Step 5: Substitute the values into the formula: PE = 5 kg * 9.8 m/s² * 10 m.
Step 6: Calculate the result: 5 * 9.8 * 10 = 490 J.
Step 7: Conclude that the gravitational potential energy gained is 490 Joules.
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