A ball of mass m is found to have a weight Wx on Planet X. Which of the following

B. The gravitational field strength of Planet X is Wx/m.

Explanation:

Weight is a force, and as we know by the second Newton's law:

F = m*a

Force equals mass times acceleration.

Then if the weight is:

Wx, and the mass is m, we have the equation:

Wx = m*a

Where in this case, a is the gravitational field strength.

Then, isolating a in that equation we get:

Wx/m = a

Then the correct option is:

B. The gravitational field strength of Planet X is Wx/m.

1. B, 2. C, 3. B, 4. A, 5. A, 6. D, 7. B, 8. D, 9. B

Explanation:

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