An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The astronaut has a mass of 102 kg and the bag of tools has a mass of 10.0 kg. If the astronaut is moving away from the space station at 1.80 m/s initially, what is the minimum final speed of the bag of tools (with respect to the space station) that will keep the astronaut from drifting away forever? minimum final speed: m/s

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**Problem Description:**

An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The astronaut has a mass of 102 kg and the bag of tools has a mass of 10.0 kg. If the astronaut is moving away from the space station at 1.80 m/s initially, what is the minimum final speed of the bag of tools (with respect to the space station) that will keep the astronaut from drifting away forever?

**Solution:**

To find the minimum final speed of the bag of tools, apply the principle of conservation of momentum. The total momentum of the system (astronaut + tools) before and after the bag is thrown must be equal.

**Given:**
- Mass of astronaut, \( m_a = 102 \, \text{kg} \)
- Mass of tools, \( m_t = 10.0 \, \text{kg} \)
- Initial speed of astronaut + tools, \( v_i = 1.80 \, \text{m/s} \)

**Conservation of Momentum:**
\[ m_a \cdot v_{a_i} + m_t \cdot v_{t_i} = m_a \cdot v_{a_f} + m_t \cdot v_{t_f} \]

The initial velocity of both astronaut and tools is the same, \( v_i = 1.80 \, \text{m/s} \). Therefore:
\[ (m_a + m_t) \cdot v_i = m_a \cdot v_{a_f} + m_t \cdot v_{t_f} \]

To stop drifting, the astronaut’s final velocity with respect to the space station should be \( v_{a_f} = 0 \).

Substituting, we get:
\[ (102 \, \text{kg} + 10.0 \, \text{kg}) \cdot 1.80 \, \text{m/s} = 102 \, \text{kg} \cdot 0 + 10.0 \, \text{kg} \cdot v_{t_f} \]

\[ 112 \cdot 1.80 = 10.0 \cdot v_{t_f} \]

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Transcribed Image Text:**Problem Description:** An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The astronaut has a mass of 102 kg and the bag of tools has a mass of 10.0 kg. If the astronaut is moving away from the space station at 1.80 m/s initially, what is the minimum final speed of the bag of tools (with respect to the space station) that will keep the astronaut from drifting away forever? **Solution:** To find the minimum final speed of the bag of tools, apply the principle of conservation of momentum. The total momentum of the system (astronaut + tools) before and after the bag is thrown must be equal. **Given:** - Mass of astronaut, \( m_a = 102 \, \text{kg} \) - Mass of tools, \( m_t = 10.0 \, \text{kg} \) - Initial speed of astronaut + tools, \( v_i = 1.80 \, \text{m/s} \) **Conservation of Momentum:** \[ m_a \cdot v_{a_i} + m_t \cdot v_{t_i} = m_a \cdot v_{a_f} + m_t \cdot v_{t_f} \] The initial velocity of both astronaut and tools is the same, \( v_i = 1.80 \, \text{m/s} \). Therefore: \[ (m_a + m_t) \cdot v_i = m_a \cdot v_{a_f} + m_t \cdot v_{t_f} \] To stop drifting, the astronaut’s final velocity with respect to the space station should be \( v_{a_f} = 0 \). Substituting, we get: \[ (102 \, \text{kg} + 10.0 \, \text{kg}) \cdot 1.80 \, \text{m/s} = 102 \, \text{kg} \cdot 0 + 10.0 \, \text{kg} \cdot v_{t_f} \] \[ 112 \cdot 1.80 = 10.0 \cdot v_{t_f} \] \[
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