The least velocity required to throw a body away from the surface of a planet so that it may not return is (radius of the planet is
The least velocity required to throw a body away from the surface of a planet so that it may not return is (radius of the planet is ( 6.4×106 m, g=9.8 m/sec2)
(a) 9.8 ×10-3 m/sec (b) 12.8 ×103 m/sec
(c) 9.8×103 m/sec (d) 11.2×103 m/sec
Answer: d
(8)
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