plzz solve both the parts
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Anonymous286:
cross product se nahi aa raha?
are aa gya
dobara kiya to
ha ok
cross se he aya nah?
second wala aya?
woh bhi easy hai shayad
answer (B) hai nah?
Answers
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The first question comes with cross product.
Now talking about Second question
A circular wire can be considered equivalent to a circular ring
Similarly a semicircular wire can be considered equivalent to semicircular ring
Now for a full circular ring
M.I=MR^2
but for a semicircular ring the mass reduces to 1/2 of the original mass
Hence
M.I=(1/2M)^R^2
I m not 100% sure if this correct or not but I think this can be a possible way
Hope it helps.....
:)
Now talking about Second question
A circular wire can be considered equivalent to a circular ring
Similarly a semicircular wire can be considered equivalent to semicircular ring
Now for a full circular ring
M.I=MR^2
but for a semicircular ring the mass reduces to 1/2 of the original mass
Hence
M.I=(1/2M)^R^2
I m not 100% sure if this correct or not but I think this can be a possible way
Hope it helps.....
:)
the ans is mr^2
B to mera bhi aaya tha
acha ok toh let me think
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