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ANTONII [103]
3 years ago
14

The kinetic energy of a roller coaster is 100 joules. The potential energy of the same coaster is 100 joules. What is the mechan

ical energy of the coaster?
Physics
1 answer:
igor_vitrenko [27]3 years ago
4 0

Answer/Explanation:

The mechanical energy is 200 joules. Mechanical energy is determined by adding the total kinetic energy by the total potential energy.

M = kp

100 + 100 = 200

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The Inertia is 22. 488 kg. m² and the speed just before it hits the ground is 6. 4 m/s

<h3>How to determine the inertia</h3>

Using the formula:

I = 1/2 M₁R₁² + 1/2 M₂R₂²

Where I = Inertia

I = 1/2 * 0.810* (2. 60)² + 1/2 * 1. 58 * (5)²

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I = 22. 488 kg. m²

To determine the block's speed, use the formula

v = \sqrt{2gh}

v = \sqrt{2* 10 * 2. 10}

v = \sqrt{42}

v = 6. 4 m/s

Therefore, the Inertia is 22. 488 kg. m² and the speed just before it hits the ground is 6. 4 m/s

Learn more about law of inertia here:

brainly.com/question/10454047

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2 years ago
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Answer:

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