Potential Energy (PE Problems: 6. A rock of mass 2.2 kg is held 8 meters above the ground. Calculate the gravitational potential energy. 7. A 15 kg object is placed on a shelf 3.5 meters high. Find its potential energy. 8. A 3 kg book is placed on a table that is 7 meters above the floor.What is the potential energy of the book? 9.A 55 kg crate is lifted 5 meters in the air. Calculate the potential energy of the crate. 10. A 0.9 kg bird is perched on a tree 6 meters above the ground. What is the gravitation potential energy of the bird?

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Potential Energy (PE Problems: 6. A rock of mass 2.2 kg is held 8 meters above the ground. Calculate the gravitational potential energy. 7. A 15 kg object is placed on a shelf 3.5 meters high. Find its potential energy. 8. A 3 kg book is placed on a table that is 7 meters above the floor.What is the potential energy of the book? 9.A 55 kg crate is lifted 5 meters in the air. Calculate the potential energy of the crate. 10. A 0.9 kg bird is perched on a tree 6 meters above the ground. What is the gravitation potential energy of the bird?

Answer 1

Here are the solutions to the potential energy problems:**Formula:** Gravitational Potential Energy (PE) = mghWhere:* m = mass (in kg)* g = acceleration due to gravity (approximately 9.8 m/s²)* h = height (in meters)**Problem 6:*** m = 2.2 kg* g = 9.8 m/s²* h = 8 mPE = (2.2 kg) * (9.8 m/s²) * (8 m) = 172.48 Joules**Problem 7:*** m = 15 kg* g = 9.8 m/s²* h = 3.5 mPE = (15 kg) * (9.8 m/s²) * (3.5 m) = 514.5 Joules**Problem 8:*** m = 3 kg* g = 9.8 m/s²* h = 7 mPE = (3 kg) * (9.8 m/s²) * (7 m) = 205.8 Joules**Problem 9:*** m = 55 kg* g = 9.8 m/s²* h = 5 mPE = (55 kg) * (9.8 m/s²) * (5 m) = 2695 Joules**Problem 10:*** m = 0.9 kg* g = 9.8 m/s²* h = 6 mPE = (0.9 kg) * (9.8 m/s²) * (6 m) = 52.92 Joules

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