Answer :
1) F = m.a
Here, F= 99N, a = 12.5 m/s^2
m = F/a
m = 99/12.5
m = 7.92 Kg
2) weight = mg
Here, m = 55 Kg, g = 9.8 m/s^2
W = 55*9.8 = 539 Newtons.
The mass of an object with a force of 99N accelerating at 12.5 m/s² is 7.92 kg. The weight of a 55 kg object on Earth is 539 N.
To find the mass of an object moving with a force of 99N at an acceleration of 12.5 m/s², use Newton's second law of motion, F = ma.
Rearranging this equation to solve for mass:
[tex]m = \frac{F}{a}[/tex]
Substituting the given values, m = 99N / 12.5 m/s² = 7.92 kg.
The weight of a mass is the force it experiences due to gravity and is calculated using the equation W = mg, where W is weight, m is mass, and g is the acceleration due to gravity (g = 9.8 m/s² on Earth).
Therefore, for a mass of 55 kg, W = 55 kg * 9.8 m/s² = 539 N.
