Alice is on a spacewalk carrying two rocks, which have the same mass. She throws one rock with speed v to push herself in the direction she wants to go.
When she's ready to stop, she throws the second rock. Assuming the duration of both throws is the same, how should she throw the rock?
1. Along the direction she's moving, but with more force.
2. Along the direction she's moving, with the same force.
3. Along the direction she's moving, but with less force.
4. Opposite the direction she's moving, with the same force.
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I think it is 2. Along the direction she is moving with same force
Because it will stop the motion by applying force in opposite direction
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ayushdey0970:
You are wrong..
Correct option is 3. When she would throw the second stone, she would have to apply less force because the mass of the first stone was absent.
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Answer:
your answer is option 2
Along the direction she's moving, with the same force
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