Find the force of gravity between a newborn baby (mass = 2.9 kg ) and planet Mars (mass = 6.4×1023kg) when Mars is at its closest to Earth (

Question

Find the force of gravity between a newborn baby (mass = 2.9 kg ) and planet Mars (mass = 6.4×1023kg) when Mars is at its closest to Earth (distance = 5.6×1010m ).

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Gerda 2 weeks 2021-08-28T18:41:02+00:00 1 Answers 0 views 0

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    2021-08-28T18:42:17+00:00

    Answer:

    The force of gravity between the newborn baby and Mars is 3.94x10^{-8}N

    Explanation:

    The universal law of gravitation is defined as:

    F = G\frac{m1m2}{r^{2}} (1)

    Where G is the gravitational constant, m1 and m2 are the masses of the two objects and r is the distance between them.

    Since the newborn baby is at the Earth, it will be at a distance (r) of 5.6x10^{10}m from Mars.

    Therefore, equation 1 can be used:

    F = (6.67x10^{-11}kg.m/s^{2}.m^{2}/kg^{2})\frac{(2.9Kg)(6.4x10^{23}Kg)}{(5.6x10^{10}m)^{2}}

    F = 3.94x10^{-8}Kg.m/s^{2}

    F = 3.94x10^{-8}N

    Hence, the force of gravity between the newborn baby and Mars is 3.94x10^{-8}N.

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