Originally Posted by

**Kira**
Okie... I think I see the point now....

So overall accln at the instant of 1s is 2m/s^2.

My question then is, when the masses are in motion, then with 2m/s^2, the resultant force on each item will be 2N on mass p acting downwards, 2N on mass q acting upwards and 4N on mass of 2kg acting to the left. (excluding gravity force). So is it safe to say that the applied 8N has disperse into a ratio of 1:2:1 in the order of P:2kg:Q?

Also, what will happen if we consider the moment of inertia of each of the object?

Lastly, why can't we consider that the applied 8N be transmitted directly to the 2kg mass using equbilium of forces since mass P and Q cancel out each other? I'm assuming that this is what the teacher did to get v=4m/s^2....

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