The mass of the object is mathematically given as
mass = 19.2kg
Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term.
The intensity of an object's gravitational pull to other bodies is also influenced by its mass. The kilogram is the primary mass unit in the SI.
Generally, the equation for Force is mathematically given as
f = mass x acceleration
Therefore
250 = mass x 13
ma = 250/13
m = 19.2
In conclusion, the mass of the object is
mass = 19.2
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