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Laws of Motion — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSLaws of Motion2 Marks
Question
How will the force of gravitation between two objects change if the distance between them is:
Made four times
✓

Answer

We know that law of gravitation.
$F = G ( m_1 X m_2)/R^2.$
If distance between them is made four times then put R = 4R.
$F = G( m1 X m2)/16 R^2.$
$F_1 = F/16.$

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