Problem

A large wooden turntable in the shape of a flat u…

Problem 44 Hard Difficulty

As it is, the system above is not balanced. Which of the following
changes would NOT balance the system so that there is 0 net torque?
Assume the plank has no mass of its own.
(A) Adding a mass equal to $m_{2}$ on the far left side and a mass equal to
$m_{1}$ and on the far right side
(B) Stacking both masses directly on top of the fulcrum
(C) Moving the fulcrum a distance $\mathrm{L} / 3$ to the right
(D) Moving both masses a distance $\mathrm{L} / 3$ to the left

Answer

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Cracking The AP Physics 1 Exam

Chapter 1

Practice Test 1

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Video Transcript

All right, So in this problem, uh, we have two blocks, so there's a fuck room, and the lengths off this sari is too Well, the lens of this side is also too well, and their two blocks is Ah ah, at the center and the mess of the first ones and one and does them too. And we also know that I'm to equal to everyone. So I want to know that which choice? We're not balanced. Uh, we're not. Balance the sister. So for parties, is that Adam s equal to m two on the right on the far left side and the mess equal and one the far right side. So that means me at two, we had an to over here and away at I'm won over here. Okay, so this actually, we're not balanced the system, because ah, uh, try to calculate the torque of a system of the new system. So torque induced by end to buy this one is ah to g times to our A and torque induced by this one is a plus and one g times out, and talk induced by this one is Ah, I'm too g times l the pork induced by this one's. I'm one g times two out Ray and I'm to equal to M one. So this we're not be equal. Okay, so it's not Bannister.

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Problem

A large wooden turntable in the shape of a flat u…

Problem 44 Hard Difficulty

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Cracking The AP Physics 1 Exam

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Princeton Review

Cracking The AP Physics 1 Exam

Cracking The AP Physics 1 Exam

Princeton ReviewCracking The AP Physics 1 Exam

Princeton Review

Cracking The AP Physics 1 Exam