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# an astronaut in her space suit has a total mass of 87 kg, including suit and oxygen tank.

an astronaut in her space suit has a total mass of 87 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she's on a spacewalk. Initially at rest with respect to her spacecraft,she throws her 12 kg oxygen tank away from her spacecraft with a speed of 8m/s to propel herself back toward it (a)determine the maximaum distance she can be from the craft and still return with 2 min(b)explain in terms of newton's laws of motion why this strategy works.