A uniform meter scale is in equilibrium
Force, Work, Power, Energy (10)A uniform meter scale is in equilibrium as shown in the diagram:
- Calculate the weight of the meter scale.
- Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark? F is shifted towards 0 cm. or F is shifted towards 100 cm.
Answer
(i) By property of moments
40 × 25 = w × 20
∴ w = 40 × 25⁄20 = 50 gf
(ii) F is shifted towards 0 cm
- Exam Year: 2019