Question

Find the force of gravity between a cubic meter of water (1000kg) and the Sun. The Sun's mass is 1.99 x10^30 kg and is 1.50 x10^11 m away.
A) 17.0 N
B) 5.90 N
C) 2.0 N
D) 47.20 N

Answer 1

Answer:

F = 5.9 N

Explanation:

Given that,

Mass of water, m₁ = 1000 kg

Mass of the Sun, $m_2=1.99\times 10^{30}\ kg$

Distance between two bodies, $r=1.5\times 10^{11}\ m$

We need to find the force of gravity between water and the Sun. The formula for the gravitational force between two bodies is given by :

$F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{1000\times 1.99\times 10^{30}}{(1.5\times 10^{11})^2}\\\\F=5.89\ N$

or

F = 5.9 N

Hence, the correct option is (b).