Physics 271: Advanced Honors Physics I
Recitation #6
Fall 2017
17. (a) 12 kJ (b) -11 kJ (c)
1.1 kJ (d) 5.4 m/s. You should first figure out the force exerted by
the helicopter on the astronaut. For (c) use the work-kinetic-energy
theorem (even though you can get the answer using constant
acceleration equations).
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