Question 71:
If the distance between two masses is increased by a factor of 5, by what factor would the mass of one of them have to be altered to maintain the same gravitational force ? Would this be an increase or decrease in the mass ?
Lakhmir Singh Physics Class 9
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Mass of one of them have to be altered by a factor of 25 to maintain the same gravitation force.
Because,
Force is inversally oroportional to square of distance .
As distance increases by 5 times.
So , F will decrease by 5^2= 25 times.
Hence, mass of any one of the bodies should be increased by 25 times to maintain the same gravitaional force.
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