Question

Two particles of mass 1 ks and 2 kg are placed at a seperation of 100 cm then the gravitational force
between them is

a) 5.3×10-10 N ) 13.34 x 10-11 N c) 2.65×10-10 N d) 7.95×10-10 N

please give the answer with simple explanation with the formula applied for the question


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Answer 1

Answer:

Given mass m

1=1kg and m

2

=2kg, separation d=50cm=0.5m

The gravitational forces acting between them, F= d2

Gm 1

m2

Acceleration of particle of mass m 1, a m1m =m1

F= d 2

Gm 2

= 0.5 2

6.67×10 −11×2

=5.336×10 −10m/s2

Acceleration of particle of mass m 2

a m 2 =m2

F = d 2

Gm1

=0.5 2

6.67×10 −11×1

=2.668×10

−10m/s 2