What is the potential energy of an object of mass 2 kg at a height of 5 m? (g =

₹0.0

Question: What is the potential energy of an object of mass 2 kg at a height of 5 m? (g = 9.8 m/s²) (2019)

Options:

Correct Answer: 98 J

Solution:

Potential Energy (PE) = mgh = 2 kg × 9.8 m/s² × 5 m = 98 J.

What is the potential energy of an object of mass 2 kg at a height of 5 m? (g = 9.8 m/s²) (2019)

What is the potential energy of an object of mass 2 kg at a height of 5 m? (g = 9.8 m/s²) (2019)

Step 1: Identify the formula for potential energy, which is PE = mgh.
Step 2: Identify the values needed for the formula: mass (m) = 2 kg, height (h) = 5 m, and acceleration due to gravity (g) = 9.8 m/s².
Step 3: Substitute the values into the formula: PE = 2 kg × 9.8 m/s² × 5 m.
Step 4: Calculate the multiplication: First, calculate 2 kg × 9.8 m/s² = 19.6 kg·m/s².
Step 5: Now multiply the result by the height: 19.6 kg·m/s² × 5 m = 98 J.
Step 6: Conclude that the potential energy of the object is 98 Joules.

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