Questions
A body is projected away from the earth with a speed 3v, where v, is the escape velocity. The speed of the body at infinity will be
detailed solution
Correct option is D
By the Law of conservation of energy (U+K)surface =(U+K)∞⇒−GMmR+12m3ve2=0+12mv12⇒−GMR+9ve22=12v12Since, ve2=2GMR⇒−ve22+9ve22=12v2⇒v2=8ve2⇒v=22veTalk to our academic expert!
Similar Questions
Suppose a smooth tunnel is dug along a straight line joining two points on the surface of the earth and a particle is dropped from rest at its one end. Assume that mass of the earth is uniformly distributed over its volume. Then, which of the following statements are not correct?
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