JEE MAIN - Physics (2020 - 6th September Evening Slot - No. 15)
The centre of mass of solid hemisphere of radius 8 cm is x from the centre of the flat surface. Then
value of x is __________.
Answer
3
Explanation
As we know c.o.m. or hemisphere = $${{3R} \over 8}$$
$$ \therefore $$ x = $${{3R} \over 8}$$ = $${{3 \times 8} \over 8}$$ = 3 cm
$$ \therefore $$ x = $${{3R} \over 8}$$ = $${{3 \times 8} \over 8}$$ = 3 cm
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