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Matter & Interactions 2nd ed. Practice Problems	Aaron Titus \| High Point University
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I. Modern Mechanics (89)

1 Interactions and Motion (21)

2 The Momentum Principle: Impulse and Momentum Change (18)

3 The Momentum Principle: Non-constant Forces (7)

4 Contact Forces and the Momentum Principle (14)

5 The Energy Principle (11)

5.1 The Energy Principle (0)

5.2 The simplest system: a single particle (1)

5.3 Work: Mechanical energy transfer (1)

5.4 Update form of the Energy Principle (1)

5.5 Change of identity--change of rest energy (2)

5.6 Proof of the Energy Principle for a particle (0)

5.7 Work done by a non-constant force (1)

5.8 Potential energy in multiparticle systems (0)

5.9 Properties of potential energy (0)

5.10 Gravitational potential energy (2)

5.11 Applying gravitational potential energy (1)

5.12 Gravitational potential energy near the Earth's surface (1)

5.13 Electric potential energy (1)

5.14 The mass of a multiparticle system (0)

5.15 Reflection: Why energy? (0)

5.16 Identifying initial and final states (0)

5.17 *A puzzle (0)

5.18 *Gradient of potential energy (0)

5.19 *Integrals and antiderivatives (0)

5.20 *Approximation for kinetic energy (0)

5.21 *Finding the formula for particle energy (0)

6 Energy in Macroscopic Systems (5)

7 Energy Quantization (2)

8 Multiparticle Systems (3)

9 Collisions (2)

10 Angular Momentum (6)

11 Entropy: Limits on the Possible (0)

12 Gases and Engines (0)

15b0001 Launch speed of rocket from Moon 15b0001
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Question

Moon has a mass of and a radius of . Moon has no atmosphere, so there is no air resistance. Suppose that a manned lunar rocket on the surface of Moon must launch so that when it is very far from Moon, it has a speed of 1500 m/s. What is the required launch speed? (Treat the rocket as a particle with constant mass.)