Homework Help: AP PHYSICS..so lost

Posted by Kristen on Monday, October 15, 2007 at 11:57pm.

An elevator and its load have a combined mass of 1550 kg. Find the tension in the supporting cable in Newtons when teh elevator , originally moving downward at 11 m/s, is brought to rest with constant acceleration in a distance of 43 m.

AP PHYSICS..so lost - bobpursley, Tuesday, October 16, 2007 at 8:14am
Tension= mg +- ma where a is the acceleration. + when the elevator is going up (it adds to tension), and - going down, it reduces tension when falling.

a= change velocity/time (rest means zero velocity)

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