Calculate the force between two objects having masses of 50 kg and 100 kg respectively and separated by a distance of 10 m.

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Solution

The correct option is B
According to Newton's law of gravitation, force of attraction between two bodies is

$F = \frac{G m_{1} m_{2}}{r^{2}}$

Here, $m_{1} = 100 k g, m_{2} = 50 k g, r = 10 m$
$G = 6.67 \times 10^{- 11} \frac{N m^{2}}{k g^{2}}$

$∴ F = \frac{6.67 \times 10^{- 11} \times 100 \times 50}{10^{2}}$
$F = 33.35 \times 10^{- 10}$ N
$F = 3.335 \times 10^{- 9}$ N

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Calculate the force between two objects having masses of 50 kg and 100 kg respectively and separated by a distance of 10 m.

The correct option is B According to Newton's law of gravitation, force of attraction between two bodies is F=Gm1m2r2 Here, m1=100kg,m2=50kg,r=10m G=6.67×10−11Nm2kg2 ∴ F=6.67×10−11×100×50102 F=33.35×10−10 N F=3.335×10−9 N