One day while out on a space walk to repair your ship, you notice that you have forgotten to tie off your tether! You and the heavy wrench you are carrying are drifting slowly away from the ship with a velocity of V1 = -2.87 m/s (this is negative since you are moving left in the figure). Your mass (including your suit) is M = 106 kg and you are carrying a wrench of mass m = 9.23 kg. You are one smart astronaut and and you throw the wrench in the direction away from your ship as hard as you can. The result is that afterward, your velocity is V2 = 0.64 m/s (this is positive since you are now moving right in the figure). Determine all the following: a) The velocity of the wrench at moment 2: v2 = m/s b) The total kinetic energy of you and the wrench before the throw: KE1 = Joules c) The total kinetic energy of you and the wrench after the throw: KE2 = Joules d) Where did all the extra energy come from at moment #2? (multiple choice) 1. Lowering the gravitational potential energy of the wrench.
One day while out on a space walk to repair your ship, you notice that you have forgotten to tie off your tether! You and the heavy wrench you are carrying are drifting slowly away from the ship with a velocity of V1 = -2.87 m/s (this is negative since you are moving left in the figure). Your mass (including your suit) is M = 106 kg and you are carrying a wrench of mass m = 9.23 kg. You are one smart astronaut and and you throw the wrench in the direction away from your ship as hard as you can. The result is that afterward, your velocity is V2 = 0.64 m/s (this is positive since you are now moving right in the figure).
Determine all the following:
a) The velocity of the wrench at moment 2: v2 = m/s
b) The total kinetic energy of you and the wrench before the throw: KE1 = Joules
c) The total kinetic energy of you and the wrench after the throw: KE2 = Joules
d) Where did all the extra energy come from at moment #2? (multiple choice)
1. Lowering the gravitational potential energy of the wrench.
2. Gravity is doing positive work as you are orbiting Earth.
3. Negative work done by you while throwing the wrench.
4. Positive work done by you while throwing the wrench.
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