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Unit Review: Motion and Newton's Laws

If the mass of an object on Earth is 25 kg, what is its weight?

A. 2.56 kg
B. 245 N
C. 2.56 N
D. 245 kg

Answer :

Final answer:

The weight of an object is calculated using the formula weight = mass × gravity. For an object with a mass of 25 kg on Earth, the weight is 245 N. Hence, the correct answer is 245 N.


Explanation:

Understanding Weight and Mass

To determine the weight of an object on Earth, you can use the formula:

Weight = Mass × Acceleration due to Gravity

On Earth, the acceleration due to gravity (g) is approximately 9.8 m/s².

In this case, if the mass of an object is 25 kg, the weight can be calculated as follows:

  1. Weight = 25 kg × 9.8 m/s²
  2. Weight = 245 N

Therefore, the correct answer is 245 N.


Learn more about weight here:

https://brainly.com/question/31166130


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