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1. If an object is moving with a force of 99 N at [tex]12.5 \, \text{m/s}^2[/tex], what is the mass of this object?

2. What is the weight of a 55 kg mass?

Answer :

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.

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Rewritten by : Barada

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.