IB Physics · D.1 · extended response
Escape speed from planet 6
Fields · Gravitational fields · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- demanding
- Marks
- 6
- Topics
- 2
- Answer
- Complete
Question6 marks
A spherical planet has mass 5.70 × 1024 kg and radius 6.10 × 106 m. Derive and calculate the minimum launch speed from its surface to reach infinity with zero final speed, ignoring atmosphere and rotation.
Task interpretation
What a complete response should do
Organise the response into a logical argument, linking the physics principle to the evidence and conclusion.
Split the problem into linked stages and state why each relationship applies.
- Response type
- extended response
- Allocation
- 6 marks
- Demand
- demanding
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