A particle is kept at a distance R above the earth’s surface. What is the minimum speed with which it should be projected so that it does not return?
A. [(G*M)/(4*R)]1/2
B. [(G*M)/(2*R)]1/2
C. [(G*M)/R] ½
D. [(2*G*M)/R]1/2
Answer:C
A particle is kept at a distance R above the earth’s surface. What is the minimum speed with which it should be projected so that it does not return?
A. [(G*M)/(4*R)]1/2 B. [(G*M)/(2*R)]1/2 C. [(G*M)/R] ½ D. [(2*G*M)/R]1/2