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Problems

For posting attempts at solutions to physics problems.

8 posts ·
60%
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A particle is subjected to the potential V (x) = −F x, where F is a constant. The particle travels from x = 0 to x = a in a time interval t0 . Assume the motion of the particle can be expressed i...

1 answer  ·  posted 1y ago by deleted user  ·  edited 1y ago by Trilarion‭

66%
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A disk of mass $M$ and radius $R$ is initially rotating at angular velocity of $\omega$. While rotating, it is placed on a horizontal surface whose coefficient of friction is $\mu=0.5$. How long ...

1 answer  ·  posted 2y ago by deleted user  ·  edited 1y ago by deleted user

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$$L'=\frac{m}{2}(a\dot{x}^2+2b\dot{x}{y}+c\dot{y}^2)-\frac{k}{2}(ax^2+2bxy+cy^2)$$where a, b, and c are arbitrary constants but subject to the condition that $b^2 − ac \ne 0$. What are the equat...

1 answer  ·  posted 1y ago by deleted user  ·  last activity 1y ago by celtschk‭

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A stuntman jumped from $1.25 \ \text{m}$ height and, landed at distance $10 \ \text{m}$. Find velocity when he jumped. (Take $\text{g}=10 \ ms^{-2}$) I had solved it following way. $$h=\fra... 1 answer · posted 1y ago by deleted user · last activity 1y ago by deleted user 50% +0 −0 Mass M1 is held on a plane with inclination angle θ, and mass M2 hangs over the side. The two masses are connected by a massless string which runs over a massless pulley (see Fig. 3.1). The c... 1 answer · posted 1y ago by deleted user · last activity 1y ago by deleted user 50% +0 −0 Mass of a timber is 20 \ g. And, density of that timber is 0.27 \ g/cc. That timber was bind to a metallic materials and, it was released to 0.970 \ g/cc water. How much the wood was submer... 1 answer · posted 1y ago by deleted user · last activity 1y ago by deleted user 60% +1 −0 I have a circuit like this. And, I want to calculate resistance from here. I was following these steps. I was calculating resistance for left side circuit.$$R_1=\frac{2 × 2}{2+2+4}=0.5\Omega...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by Olin Lathrop‭

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A 4C point charge of mass 2kg is suspended by a string of length 6m. The charge is placed in the Earth's Gravitational field and a uniform horizontal electric field of strength $\sqrt{11}NC^{-2}$...

1 answer  ·  posted 2y ago by deleted user

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