Gravitation-Energy (NEET Physics): Questions 9 - 10 of 10

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Question number: 9

» Gravitation » Energy

MCQ▾

Question

With what velocity must a body be thrown upward form the surface of the earth so that it reaches a height of 7 Re? Earth’s mass M = 6 ⨯ 10 24 kg, radius R e = 6.4 ⨯ 10 6 m and G = 6.67 ⨯ 10 -11 N-m 2 /kg 2.

Choices

Choice (4) Response
a.

1.04105ms

b.

1.04104ms

c.

10.4103ms

d.

10.4104ms

Question number: 10

» Gravitation » Energy

Appeared in Year: 2016

MCQ▾

Question

A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0 , the value of acceleration due to gravity at the earth’s surface, is –

Choices

Choice (4) Response
a.

2mg0R2R+h

b.

2mg0R2R+h

c.

mg0R22(R+h)

d.

mg0R22(R+h)

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