- #1

- 24

- 0

a) How much work is done by the helicopter on the astronaut?

W=1/2MV^2=FS

first try: V^2=2as W=mas=8882.9949J wrong

second try: F=mg W=mgh=12052.8603J wrong

someone help me please, thank you so much!!

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- Thread starter shenwei1988
- Start date

- #1

- 24

- 0

a) How much work is done by the helicopter on the astronaut?

W=1/2MV^2=FS

first try: V^2=2as W=mas=8882.9949J wrong

second try: F=mg W=mgh=12052.8603J wrong

someone help me please, thank you so much!!

- #2

- 78

- 0

- #3

- 24

- 0

is the force mg ?

- #4

- 6

- 0

F = m*a

Force of helicopter - mass of astronaut * g = mass of astro * 7.23

Therefore the Force the helicopter must exert is 7.23 m + mg

Work = Force x Distance, so its just (7.23 m + mg) (16.9) Joules. Good luck!

- #5

- 24

- 0

yeah, i forgot to add the force of helicopter. thank you man!!

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