2022
Physics
POST UTME
A uniform metre rule is pivoted at the 60cm mark. If a mass of 30g is hung at the 20cm mark, calculate the mass which must be hung at the 85cm mark to balance the metre rule horizontally.
A.
24g
B.
40g
C.
48g
D.
72g
Correct Answer: 24g
Explanation
I and II
The student will observe a cracking sound and a spark (light). This is due to building up of static electricity as a result of friction between the skin and the fabric (pullover).
I and II
The student will observe a cracking sound and a spark (light). This is due to building up of static electricity as a result of friction between the skin and the fabric (pullover).
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