a 70kg astronaut is space walking outside the space capsual and is stationary wh

Question

a 70kg astronaut is space walking outside the space capsual and is stationary when the tether line breaks. as a means of returning to the capsule he throws his 2.0 kg space hammer at a speed of 14ms away from the capsule. at what speed does the astronaut move toward the capsule? a 70kg astronaut is space walking outside the space capsual and is stationary when the tether line breaks. as a means of returning to the capsule he throws his 2.0 kg space hammer at a speed of 14ms away from the capsule. at what speed does the astronaut move toward the capsule? a 70kg astronaut is space walking outside the space capsual and is stationary when the tether line breaks. as a means of returning to the capsule he throws his 2.0 kg space hammer at a speed of 14ms away from the capsule. at what speed does the astronaut move toward the capsule?

Explanation / Answer

given,

mass of astronaut = 70 kg

mass og happer = 2 kg

speed of hammer = 14 m/s

by sonservation of momentum

initial momentum = final momentum

0 = 2 * 14 - 70 * v

v = 0.4 m/s

speed of astronaut = 0.4 m/s

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