A rocket takes off from an asteroid and reaches a speed of 100 m/s. You may neglect the gravitational pull from the asteroid. If the exhaust speed is 1500 m/s and the mass of fuel burned is 100 kg, what was the initial mass of the rocket (with fuel)?
A rocket takes off from an asteroid and reaches a speed of 100 m/s. You may neglect the gravitational pull from the asteroid. If the exhaust speed is 1500 m/s and the mass of fuel burned is 100 kg, what was the initial mass of the rocket (with fuel)?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![**Problem Statement:**
A rocket takes off from an asteroid and reaches a speed of 100 m/s. You may neglect the gravitational pull from the asteroid. If the exhaust speed is 1500 m/s and the mass of fuel burned is 100 kg, what was the initial mass of the rocket (with fuel)?
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**Solution Explanation:**
This problem involves the application of the rocket equation (also known as Tsiolkovsky's rocket equation). The equation establishes a relationship between the velocity change of the rocket and the mass of the fuel used, as well as the effective exhaust velocity of the fuel.
The equation is given by:
\[
v_f = v_e \ln \left(\frac{m_i}{m_f}\right)
\]
Where:
- \( v_f \) is the final velocity of the rocket.
- \( v_e \) is the exhaust speed.
- \( m_i \) is the initial mass of the rocket (including fuel).
- \( m_f \) is the final mass of the rocket (after fuel is burned).
- \( \ln \) denotes the natural logarithm.
Given:
- \( v_f = 100 \, \text{m/s} \)
- \( v_e = 1500 \, \text{m/s} \)
- Mass of fuel burned = \( m_i - m_f = 100 \, \text{kg} \)
The solution would require substituting the known values into the rocket equation and solving for \( m_i \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20cc39aa-9799-4cbf-b3bc-a25f2f3d9070%2F62f165f1-9706-437b-95cd-f8ca04157426%2Fl5nlur4_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
A rocket takes off from an asteroid and reaches a speed of 100 m/s. You may neglect the gravitational pull from the asteroid. If the exhaust speed is 1500 m/s and the mass of fuel burned is 100 kg, what was the initial mass of the rocket (with fuel)?
---
**Solution Explanation:**
This problem involves the application of the rocket equation (also known as Tsiolkovsky's rocket equation). The equation establishes a relationship between the velocity change of the rocket and the mass of the fuel used, as well as the effective exhaust velocity of the fuel.
The equation is given by:
\[
v_f = v_e \ln \left(\frac{m_i}{m_f}\right)
\]
Where:
- \( v_f \) is the final velocity of the rocket.
- \( v_e \) is the exhaust speed.
- \( m_i \) is the initial mass of the rocket (including fuel).
- \( m_f \) is the final mass of the rocket (after fuel is burned).
- \( \ln \) denotes the natural logarithm.
Given:
- \( v_f = 100 \, \text{m/s} \)
- \( v_e = 1500 \, \text{m/s} \)
- Mass of fuel burned = \( m_i - m_f = 100 \, \text{kg} \)
The solution would require substituting the known values into the rocket equation and solving for \( m_i \).
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