Question

A 2 kg stone is dropped from a 50-m-tall building. Simultaneously, a second 1 kg stone is thrown horizontally from the building at a speed of 14 m/s , as shown in the figure. (Figure 1)

Part A: Calculate the x position of the center of mass of the two-stone system the moment after they are set in motion.

Express your answer in meters as an integer.

Part B: Calculate the y position of the center of mass of the two-stone system the moment after they are set in motion.

Express your answer in meters as an integer.

Answer 1

A)

X_cm = (2 x 0 + 1 x 0)/(2 + 1) = 0 m

B)

Y_cm = (2 x 50 + 1 x 50)/(2 + 1) = 50 m

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