InterviewSolution
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If mass of a planet is eight times themass of the earth and its radius istwice the radius of the earth, whatwill be the escape velocity for thatplanet? |
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Answer» Planet mass is 8 times that earth Planet radius is twice then the radius of earth. Let mass of the Earth = M Radius of the Earth = R Now, we know that The equation to get escape velocity v = √(2 g r) V = root(2GM)/R If the mass of planet is eight times then escape velocity = 2 √2 times. Escape velocity reduced to by 1/√2. If radius expands twice Hence the net escape velocity will be increase. 2 √2 × (1/√2)= 2 times now. Now it is clear that the escape velocity of that planet will be 2 times from the earth. Escape velocity of the earth = 11.2 km/s Escape velocity of that planet = 2 × 11.2 = 22.4 km/sec. Hence the escape velocity of that planet will be 22.4 km/s Like my answer if you find it useful! |
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