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Question 15SavedA forklift raises a crate 300 cm into the air. The mass of the crate is 1800 kg.Calculate the gravitational potential energy given to the crate. Give the answer in joules and show your working out.

Question

Question 15SavedA forklift raises a crate 300 cm into the air. The mass of the crate is 1800 kg.Calculate the gravitational potential energy given to the crate. Give the answer in joules and show your working out.

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Solution

The formula for gravitational potential energy is:

PE = mgh

where: PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height the object is lifted.

In this case, the mass (m) is 1800 kg, the acceleration due to gravity (g) is approximately 9.8 m/s², and the height (h) is 300 cm, which is 3 m (since 1 m = 100 cm).

Substituting these values into the formula gives:

PE = 1800 kg * 9.8 m/s² * 3 m = 52920 Joules

So, the gravitational potential energy given to the crate is 52920 Joules.

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