Two masses are attracted by a gravitational force of 0.28 N. What will the force of attraction be if the distance between these masses is halved

1.12 N

Explanation:

Let the masses be m and M and distance be d . Force between them is .28 N .

Applying Newton's law of Gravitation

.28 = G x m M / d²

distance is halved , so distance becomes d /2

Force of attraction = G m M / ( d/2)²

= 4 Gm M / d²

= 4 x .28

= 1.12 N .

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