Gravitational Potential Energy of a Two Mass System
A particle is...
Question
A particle is fired vertically upwards with a speed of 15 km/s. With what speed (in km/s) will it move in interstellar space? Assume only earth’s gravitational field.
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Solution
space in which our sun effect is neglible is called interstellar space. By conservation of mechanical energy, −GMmR+mv202=mv22 −GMR+v202=v22 Substituting the values, G=6.67×10−11,M=6×1024kg,R=6400km,v0=15kms−1 v=10kms−1