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Gravitation question

2025 · 4 Apr · Shift 2 · Q59
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  5. /2025 · 4 Apr · Shift 2 · Q59

Gravitation question

2025 · 4 Apr · Shift 2 · Q59

JEE MainPhysicsGravitationMCQ+4 / −1
An object is kept at rest at a distance of 3R3 R3R above the earth's surface where RRR is earth's radius. The minimum speed with which it must be projected so that it does not return to earth is : (Assume M=\mathrm{M}=M= mass of earth, G=\mathrm{G}=G= Universal gravitational constant)
  1. A
    3GMR\sqrt{\frac{3 \mathrm{GM}}{\mathrm{R}}}R3GM​​
  2. B
    2GMR\sqrt{\frac{2 \mathrm{GM}}{\mathrm{R}}}R2GM​​
  3. C
    GM2R\sqrt{\frac{\mathrm{GM}}{2 \mathrm{R}}}2RGM​​
  4. D
    GMR\sqrt{\frac{\mathrm{GM}}{\mathrm{R}}}RGM​​
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