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A long, uniform rod of length  0.500 mm and is rotating in a circle on a frictionless...

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Physics

A long, uniform rod of length  0.500 mm and isrotating in a circle on a frictionless table. The axis of rotationis perpendicular to the length of the rod at one end and isstationary. The rod has an angular velocity of 0.42 rad/srad/s anda moment of inertia about the axis of 3.20×10−3kg⋅m2kg⋅m2 . An insect initially standing on the rod at the axis ofrotation decides to walk to the other end of the rod. When theinsect has reached the end of the rod and sits there, itstangential speed is 0.173 m/sm/s . The insect can be treated as apoint mass.

A) Find the mass of the rod?

B)  Find the mass of the insect?

Answer & Explanation Solved by verified expert
4.3 Ratings (541 Votes)
AMoment of inertia of rod M3Mmass of rodLits length05m32xkgm2M3M3 3x32x00384kg384xkgBInitial angular momentum    See Answer
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