33. Due to some error in a weighing scale, it shows the following reading when at rest (no weight is placed on it). Neerja measu
red her weight on this scale. The weight shown on the scale was 28 kg. What should she do to find out her correct weight? (A) Add 2 kg to the weight shown. (B) Subtract 2 kg from the weight shown.
(C) Subtract 28 kg from the weight shown. (D) Add 4 kg to the weight shown
The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. One plate holds an object of unknown mass (or weight), while known masses are added to the other plate until static equilibrium is achieved and the plates level off, which happens when the masses on the two plates are equal. The perfect scale rests at neutral. A
The formula to find diameter is d=2r D= diameter R= radius The 2 is there because you have half of the diameter so just times by 2 to get the diameter.
