you stand on a bathroom scale in a moyionless elevator,whenthe elevator begins t

Question

you stand on a bathroom scale in a moyionless elevator,whenthe elevator begins to move,the scale breifly reads o.75 of yourreal body weight,what is the acceleration of the elevator?? -2.5m/s^2 5.0   " 13.0   " -5.o "      these are the 4answers ,not sure which one?? help!!!! you stand on a bathroom scale in a moyionless elevator,whenthe elevator begins to move,the scale breifly reads o.75 of yourreal body weight,what is the acceleration of the elevator?? -2.5m/s^2 5.0   " 13.0   " -5.o "      these are the 4answers ,not sure which one?? help!!!!

Explanation / Answer

The vertical component is             T - mg = ma             0.75 mg - mg = ma        ==> a =0.75 * 9.8 - 9.8 =-2.45 m/s2 ˜ -2.5m/s2

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