if the earth suddenly contracted to half of its radius without any change in its mass and it's safe duration of day instead of 24 hours will be
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its angular velocity will increase bcoz w=v/r.
its time will decreases because w=2π/T.
you can find answer by putting value .
neeraj2965:
one day Kitna hours ka hoga
12 hours
no 6hour. but how
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if the earth suddenly contract to half of its radius without any change in its mass and its shape duration of day instead of 24 hours will be
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use conservation of angular momentum
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0
If size of the earth reduce to half of its present size then it's radius will also reduce to half
If r1 present radius of the earth and r2 is the radius when its size gets half
Then according to given condition
r2=r1/2
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