Physics
The force of attraction between two masses each of 1 kg kept at a separation of 1 m is —
- 9.8 N
- 6.7 N
- 980 N
- 6.7 x 10-11 N
Laws of Motion
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Answer
6.7 x 10-11 N
Reason — As we know,
F = G and
Given,
r = 1 m
weight of masses = 1 kg each
G = 6.7 x 10 -11 N m 2 kg-2
Substituting the values in the formula above, we get,
Hence,
the force of attraction = 6.7 x 10-11 N
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Related Questions
The value of gravitational constant G changes with the change in :
- height
- place
- distance
- it remains unchanged
The gravitational force between two masses is :
- directly proportional to the product of the masses
- inversely proportional to the square of the separation between them
- significant between heavenly bodies, but is insignificant between atomic bodies.
- all of the above
The gravitational force of attraction between two bodies of masses 60 kg and 40 kg separated by a distance 10 m is : (where G = 6.7 x 10-11 Nm2kg-2 )
- 1.60 x 10-9 N
- 2.8 x 10-11 N
- 1.0 x 10-11 N
- 1.6 x 10-11 N
The S.I. unit of g is :
- m s-1
- m s-2
- cm s-1
- cm s-2