Abrave child decides to grab onto an already spinning merry‑go‑round. the child is initially at rest and has a mass of 34.5 kg. the child grabs and clings to a bar that is 1.45 m from the center of the merry‑go‑round, causing the angular velocity of the merry‑go‑round to abruptly drop from 55.0 rpm to 17.0 rpm. what is the moment of inertia of the merry‑go‑round with respect to its central axis?

Explanation:

Here as we know that total angular momentum is always conserved for child + round system

so here by angular momentum conservation we have

here we have

(inertia of boy)

now we have

the answer is a)

mark brainliest

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!