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8 January, 23:28

If a cat's mass is 1.20 kg, what is its weight on earth?

a. 11.9

b. 12.1

c. 12.2

d. 11.8

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Answers (1)
  1. 8 January, 23:54
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    Weight is a force. As such it is determined by the Newton's second law of motion: Force = mass x acceleration.

    When referring to weight the acceleration is equal the gravity constant (g=9.8m/s^2).

    Hence, the weight of a mass of 1.20kg on Earth is:

    W = 1.20 x 9.8 = 11.8

    Correct answer: (d)
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