Question

What is the force of gravity on a body of mass 150 kg lying on the surface of the earth?
( mass of earth =
$6 \times 10 {}^{24} kg$
Radius of earth =
$6.4 \times 10 {}^{6} m$
G=
$6.7 \times 10 {}^{ - 11 \:} nm {}^{2} kg$


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Answer 1

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Refer to attachment..

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Answer 2

Question :

• What is the force of gravity on a body of mass 150 kg lying on the surface of the earth?( mass of earth = $6 \times 10 {}^{24} kg$Radius of earth = $6.4 \times 10 {}^{6} m$G=$6.7 \times 10 {}^{ - 11 \:} nm {}^{2} kg$

Given :

• mass of earth = $6 \times 10 {}^{24} kg$, Radius of earth = $6.4 \times 10 {}^{6} m$, G=$6.7 \times 10 {}^{ - 11 \:} nm {}^{2} kg$

Solution :

Given mass = 150kg

Mass of the earth = 9.8 m/s² (Given)

Force = 150×9.8

= 1470.0

= 1470 N

= $\sf\frac{10}{147}$