Calculate the force of gravitation between two bodies each of mass 70 kg and placed 14 cm apart
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Answered by
39
gravitation between two bodies can be calculate by using the formula
g=GMmr^-2
here r=14cm=0.14m, r^2 =0.0196
m=M=70kg
G=6.67 X 10^-11
SO, g=[( 6.67*10^-11m^3 kg^-1 s^-2) (4900kg^2) ]/0.0196 m^2
g=1.6675m/s^2
g=GMmr^-2
here r=14cm=0.14m, r^2 =0.0196
m=M=70kg
G=6.67 X 10^-11
SO, g=[( 6.67*10^-11m^3 kg^-1 s^-2) (4900kg^2) ]/0.0196 m^2
g=1.6675m/s^2
vsrakta:
the small g is acceleration due to gravity and numerically equal to g=GM/r^2 u can't use f as g one is force another is acceleration
Answered by
28
Given:
mass=m1=m2 =70kg
distance=R=14cm=14/100=0.14m
G=gravitational constant =6.67 x 10⁻¹¹ Nm²/kg²
Formula to be used :
F=(Gm1m2)/R²
=(G70x70)/0.14x0.14
=G(4900)/0.0196
=Gx25x10⁴ N
where G=6.67 x 10⁻¹¹ Nm²/kg²
mass=m1=m2 =70kg
distance=R=14cm=14/100=0.14m
G=gravitational constant =6.67 x 10⁻¹¹ Nm²/kg²
Formula to be used :
F=(Gm1m2)/R²
=(G70x70)/0.14x0.14
=G(4900)/0.0196
=Gx25x10⁴ N
where G=6.67 x 10⁻¹¹ Nm²/kg²
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