Pen and a home which will need more velocity to escape from the earth?
Correct answer: C. both need the same velocity
- A. pen needs less velocity
- B. home needs more velocity
- C. both need the same velocity
- D. none
Explanation
Ignoring air resistance, a pen and a house require the same escape velocity because escape velocity depends on the Earth’s mass and radius, not on the object’s mass. Their energies would differ, but the required speed is the same.
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