What is the gravitational potential energy of a 10 kg object at a height of 5 m?

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Question: What is the gravitational potential energy of a 10 kg object at a height of 5 m? (g = 9.8 m/s²)

Options:

Correct Answer: 98 J

Solution:

Gravitational potential energy (PE) is given by PE = mgh. Here, m = 10 kg, g = 9.8 m/s², and h = 5 m. PE = 10 * 9.8 * 5 = 490 J.

What is the gravitational potential energy of a 10 kg object at a height of 5 m? (g = 9.8 m/s²)

What is the gravitational potential energy of a 10 kg object at a height of 5 m? (g = 9.8 m/s²)

Step 1: Identify the formula for gravitational potential energy, which is PE = mgh.
Step 2: Determine the values needed for the formula: mass (m) = 10 kg, gravitational acceleration (g) = 9.8 m/s², and height (h) = 5 m.
Step 3: Substitute the values into the formula: PE = 10 kg * 9.8 m/s² * 5 m.
Step 4: Calculate the multiplication: First, multiply 10 kg and 9.8 m/s² to get 98 kg*m/s².
Step 5: Now multiply 98 kg*m/s² by 5 m to get 490 kg*m²/s², which is equal to 490 Joules (J).
Step 6: Conclude that the gravitational potential energy of the object is 490 J.

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