A 3 kg object is dropped from a height of 10 m. What is the potential energy at

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Question: A 3 kg object is dropped from a height of 10 m. What is the potential energy at the top? (2022)

Options:

Correct Answer: 90 J

Exam Year: 2022

Solution:

Potential Energy = mass × g × height = 3 kg × 10 m/s² × 10 m = 300 J

A 3 kg object is dropped from a height of 10 m. What is the potential energy at the top? (2022)

A 3 kg object is dropped from a height of 10 m. What is the potential energy at the top? (2022)

Step 1: Identify the mass of the object. In this case, the mass is 3 kg.
Step 2: Identify the height from which the object is dropped. Here, the height is 10 m.
Step 3: Identify the acceleration due to gravity (g). It is approximately 10 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 = 3 kg × 10 m/s² × 10 m.
Step 6: Calculate the potential energy: 3 × 10 × 10 = 300 J.

Potential Energy – The energy an object possesses due to its position in a gravitational field, calculated using the formula PE = mass × g × height.