An object is kept at rest at a distance of 3 R above the earth's surface where R is earth's radius. The minimum speed with which it must be projected so that it does not return to earth is :
(Assume $\mathrm{M}=$ mass of earth, $\mathrm{G}=$ Universal gravitational constant)

Question

An object is kept at rest at a distance of 3 R above the earth's surface where R is earth's radius. The minimum speed with which it must be projected so that it does not return to earth is :
(Assume

\mathrm{M}=

mass of earth,

\mathrm{G}=

Universal gravitational constant) An object is kept at rest at a distance of 3 R above the earth's surface where R is earth's radius. The minimum speed

An object is kept at rest at a distance of 3 R above the earth's surface where R is earth's radius. The minimum speed

Quantrex Academy · Accepted Answer

Correct answer: A. GM 2 R

aligned & P_ P +k_ P =P_ o +k_0 & - GMm 4 R +(1)/(2) mV_ P ^2=0 & ~V_ P = GM 2 R aligned Choice 1

An object is kept at rest at a distance of 3 R above the earth's...

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