High School

If an object weighs 4.50 lb on Earth, what would be its weight on a planet where the free-fall acceleration is 6.52 m/s²?

A. 6.11 N
B. 36.9 N
C. 19.1 N
D. 13.3 N

Answer :

The weight of the object on the planet with a free-fall acceleration of [tex]\(6.52 \, \text{m/s}^2\)[/tex] is approximately [tex]\(13.3 \, \text{N}\).[/tex]

To find the weight of the object on a planet with a free-fall acceleration of [tex]\(6.52 \, \text{m/s}^2\)[/tex], we can use the formula for weight:

[tex]\[ W = m \times g \][/tex]

Where:

- W is the weight of the object,

- m is the mass of the object, and

- g is the acceleration due to gravity.

Given that the weight of the object on Earth is [tex]\(4.50 \, \text{lb}\)[/tex], we first need to convert this to Newtons [tex](\(1 \, \text{lb} = 4.448 \, \text{N}\)):[/tex]

[tex]\[ W_{\text{Earth}} = 4.50 \, \text{lb} \times 4.448 \, \text{N/lb} \][/tex]

[tex]\[ W_{\text{Earth}} = 20.016 \, \text{N} \][/tex]

Now, we can use the weight formula to find the weight of the object on the planet with [tex]\(6.52 \, \text{m/s}^2\)[/tex] acceleration due to gravity:

[tex]\[ W_{\text{planet}} = m \times 6.52 \, \text{m/s}^2 \][/tex]

Given that weight is proportional to acceleration due to gravity, the weight on the new planet will be \(6.52/9.8\) times the weight on Earth. Thus,

[tex]\[ W_{\text{planet}} = \frac{6.52}{9.8} \times 20.016 \, \text{N} \][/tex]

[tex]\[ W_{\text{planet}} \approx 13.3 \, \text{N} \][/tex]

Therefore, the weight of the object on the planet with a free-fall acceleration of [tex]\(6.52 \, \text{m/s}^2\)[/tex] is approximately [tex]\(13.3 \, \text{N}\).[/tex]

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