A 65.5 kg astronaut is doing a repair in space on the orbiting space station. Sh

Question

A 65.5 kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35 kg tool away from her at 3.60 m/s relative to the space station. With what velocity will she begin to move? (a) She will not begin to move. (b) She will move 0.129 m/s toward the direction in which she threw the tool. (c) She will move 0.129 m/s away from the direction in which she threw the tool. (d) She will move 3.60 m/s toward the direction in which she threw the tool. (e) She will move 3.60 m/s away from the direction in which she threw the tool. (f) None of the above are correct within 2%.

Explanation / Answer

V_wrench = 3.60 m/s
M_wrench = 2.35 kg
====
V_astro = x
M_astro = 65.5

2.35 * 3.60 = 65.5 * x
x = 0.129 m/s


(c) She will move 0.129 m/s away from the direction in which she threw the tool.

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