Answer: (a)
(b)
(c) The force of Jupiter on the baby is slightly greater than the the force of the father on the baby.
Explanation:
According to the law of universal gravitation, which is a classical physical law that describes the gravitational interaction between different bodies with mass:
(1)
Where:
is the module of the force exerted between both bodies
is the universal gravitation constant and its value is
and
are the masses of both bodies.
is the distance between both bodies
Knowing this, let's begin with the answers:
<h2 /><h2>(a) Gravitational force Father exertes on baby</h2>Using equation (1) and taking into account the mass of the father , the mass of the baby
and the distance between them
, the force
exerted by the father is:
(2)
(3)
<h2>(b) Gravitational force Jupiter exertes on baby</h2>
Using again equation (1) but this time taking into account the mass of Jupiter , the mass of the baby
and the distance between Jupiter and Earth (where the baby is)
, the force
exerted by the Jupiter is:
(4)
(5)
Now, comparing both forces:
and
we can see
is greater than
. However, the difference is quite small as well as the force exerted on the baby.