A bar AB is balanced horizontally on two knife edges as illustrated as in the...
PHYSICS
WAEC 2018
A bar AB is balanced horizontally on two knife edges as illustrated as in the diagram below. Determine the weight of the bar.
- A. 10.0N
- B. 20.0N
- C. 40.0N
- D. 50.0N
Correct Answer: C. 40.0N
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