Homework Help: physics

Posted by johnny on Thursday, December 11, 2008 at 4:54pm.

An object is hung from a spring balance attached to the ceiling of an elevator cab. The balance reads 60 N when the elevator is standing still.
(a) What is the reading when the elevator is moving upward with a constant speed of 9.6 m/s?
N

(b) What is the reading when the elevator is moving upward with a speed of 9.6 m/s while decelerating at a rate of 1.9 m/s2?
N

physics - bobpursley, Thursday, December 11, 2008 at 6:29pm
a) F=ma+mg so if a is zero, ...
b)same formula.
physics - Jack, Thursday, October 21, 2010 at 6:17am
3.4 N

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