Finding the center of gravity:

three identical coins, labeled a, b, and c in the figure, lie on three corners of a square 10.0 cm on a side. determine the x coordinate of each coin, xa, xb, and xc.
express your answers in centimeters, separated by commas.

The answer is:

xA = 0

XB = 0

XC = 10.0.

The explanation:

1) From the given figure we can see that the coin B lies at the origin with coordinates (0,0).

2) and the coins A, B and C  on the corners of a square.

3) The length of all sides in a square are equal. The distance between B and C form a side of a square.

4) So distance from B to C is 10 cm. Likewise, distance from B to A is also 10 cm.

5) and when B is located at point (0,0) and C is 10 units right of B, so coordinates of C will be (10,0).

6) A is located 10 units above B, so coordinates of A will be (0, 10).  

7) Therefore, the x-coordinates of A, B and C are 0,0 and 10 respectively.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

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