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3 years ago

What is the mass of an object that requires a force of 30 N to accelerate at 5 m/s2?

Physics

1 answer:

alexira [117]3 years ago

3 0

Answer:

6 Kg.

Explanation:

From the question given above, the following data were obtained:

Force (F) = 30 N

Acceleration (a) = 5 m/s²

Mass (m) =?

Force (F) is defined as the product of mass (m) and acceleration (a). Mathematically, it can be expressed as:

Force (F) = mass (m) × acceleration (a)

F = ma

With the above formula, we can obtain the mass of the object as follow:

Force (F) = 30 N

Acceleration (a) = 5 m/s²

Mass (m) =?

F = ma

30 = m × 5

Divide both side by 5

m = 30 / 5

m = 6 Kg

Therefore, the mass of the object is 6 Kg

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Explanation:

Given that,

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Time $t_{1}=4\ hours$

Activity R= 8 mCi

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Using formula of half life

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The half life is 11.3 hr.

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