Question

O c. 1/9 OF THE ORIGINAL FORCE O d. 116 OF THE ORIGINAL FORCE O e 115 OF THE ORIGINAL FORCE O f. 1/3 OF THE ORIGINAL FORCE O 9. 1/4 OF THE ORIGINAL FORCE Oh 117 OF THE ORIGINAL FORCE When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevatoris allowed to fall freely with acceleration of gravity, then the scale will read Select one a 1125 newtons O b. None OC 400 newtons O d. 1600 newtons Oe 800 newtons NEXT PAGE SPAGE INFO CONTACT US GET SOCIAL ACING

I want only the second question in the picture

Answer 1

The scale reading N=0, doesn't mean that the weight of the person as zero.But,due to downward acceleration is same as acceleration due to gravity the person feels weightless and there is no danger for the person on hitting surface.

SO Given. man , N= soon scale reading of Ning 800 ma 9.8 ma 81 81.6369 N = scale reading to gravity 2.9.8m/s² acceleration ay que ( as per given data ay=g=9.8mist down words Wang fy = may N-mg = may N = mg tay.m m (ay+g) [i gaq. 8 m/s² m 81.63(-18+90 N=0 N=0 The scale reading option (B) alone Hence, the answer is