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A rotor which is balanced statically but not dynamically is supported...

This question belongs to Mechanical Engineering Theory Of Machine
Theory of Machine
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A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

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Correct Answer: Option A
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4 Comments
Hassan Shehwar
Hassan Shehwar 1 year ago
Initial Arrangement
M= R.L ; R=M/L ------------(i)
New Arrangement
distance between bearings = 2L
M=R(new) x 2L ; R(new)=M/2L ------ (ii)
R(new) = R/2 answer


SITTRARASU VENKAT
SITTRARASU VENKAT 6 years ago
2L=2R then cancel 2 commonly they remain same as before .
Janish James
Janish James 7 years ago
any idea to solve this
Rahul Chaurasiya772482
Rahul Chaurasiya772482 7 years ago
how
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