Physics > 2015 > 13
JAMB UTME
A piece of cork floats in water because
A.
the upthrust on it when completely immersed in water is greater than its weight in air
B.
the surface of the water acts like an elastic skin
C.
the upthrust on it when completely immersed in water is equal to its weight in air
D.
there is no upthrust on it when it is completely immersed in water
Answer: C
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