1.

A thick straight wire of length tm isfixed at its midpoint and then bent in theform of a circle. The shift in its centre ofmass isa) tm b)0.5m c)2m d m

Answer»

the answer is π/2 m.

Answer: b)0.5

Explanation:

When the wire is bent in the form of the circle the center of mass of the wire shifts to the center of the wire. Thus, the shift in center of mass of the wire is equal to the radius of the circular wire.

Suppose the radius of the circular wire is ‘x’.

The circumference of the wire will be 2πx.

Since, length of the wire is π, so, π = 2πx

=> x = 0.5 m.

This is the shift in origin of the center of mass of the wire.



Discussion

No Comment Found

Related InterviewSolutions