The diagram below illustrates a uniform metre rule which is balanced on a pivot by...
PHYSICS
WAEC 2014
The diagram below illustrates a uniform metre rule which is balanced on a pivot by some masses. Calculate the value of M
- A. 500.0g
- B. 400.0g
- C. 44.4g
- D. 25.0g
Correct Answer: D. 25.0g
Explanation
clockwise moment = Anti-clock wise moment
= M x 40 = 100 x 10
M = \(\frac{1000}{40}\)
= 25g
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