Question 30 of 34 Sapling Learning A stick is resting on a concrete step with 2/

Question

Question 30 of 34 Sapling Learning A stick is resting on a concrete step with 2/5 of its length hanging over the lands on the end of the stick hanging over the edge, and the stick begins to tip. A moment later a second, identical ladybug lands on the other end of the stick, which results in the stick comi momentarily to rest 36.1 from the horizontal. If the mass of each bug is 2.75 times the mass of the stick andthesick is 10.3 am long, what is the A single ladybug 36,100 tude of the angular acceleration of the stick at the instant shown Number figure not to scale rad/s

Explanation / Answer

Let the mass of the rod be m

so the mass of the bug will be 2.75m

At this instance, the torque of the system will be,

(0.1Lcos36.1*mg)+(3L/5cos36.1*2.75mg)-(2L/5cos36.1*2.75mg)

And, it will be equal to,

(ml2/12)

So,

(0.1Lcos36.1*mg)+(3L/5cos36.1*2.75mg)-(2L/5cos36.1*2.75mg)=(ml2/12)

0.7926+13.0785-8.719=0.0085833

=600.24699rad/s2

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