a submarine rescue chamber has a mass of 8200kg and safely descencds at a constant velocity of 10cm/s [down]. If g=9.81m/s2, what is the upward force exerted by the cable and water on the chamber?

Question

a submarine rescue chamber has a mass of 8200kg and safely descencds at a constant velocity of 10cm/s [down].  If g=9.81m/s2, what is the upward force exerted by the cable and water on the chamber?

anonymous · Answer

@experimentX ?

experimentx · Answer

8200x9.8N 
minus upthrust.
any other information give??

experimentx · Answer

I mean you know the answer??

anonymous · Answer

nope, only that given.

anonymous · Answer

the asnwer is 8.0x10^4 N [up]

anonymous · Answer

you got the answer, but then what do you go with the 10cm/s #?

experimentx · Answer

force produces acceleration .... there is no acceleration, constant velocity is irrelevant,

anonymous · Answer

okay, thank you so much.  so just 8200*9.81 then !

experimentx · Answer

yes ... since no information about upthrust is given.

anonymous · Answer

yuppp, thats the answer in the textbook, thank you once again !