WEBVTT
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um here we have opposed to why exists? Well
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, two axes and, uh, it's making an
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angle here. The four so far mg is acted
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on there. Particle. There's a force off Effie
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in this direction. And the force, which is
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cool to detention, is acted here of making an
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angle of five degrees. So summing up the forces
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in my direction with physical zero, we can write
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mg will be cool to Ah, they were total
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component off the tension. So the vertical component off
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the attention will be this one here, which is
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a tension t t course, uh, t cause
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five degrees. Where is the sum of forces in
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X direction that easy in this direction. This will
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be, uh, attention. Sorry. T of
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sign signed five D, please. This will be
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called to F e. So, um, if
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he is equal to t sign five degrees, then
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we can right f e. If he you will
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be equal to M G if he's called NGO ever
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cost later. With just five degrees sign five degrees
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. We, uh, sold 40 from this equation
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. Let's call this one. And then we just
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replaced the value off a tee with MG cause five
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degrees. This equation becomes the MG Day five Giddens
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, The distance separating the tooth fairy is ah from
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the figures are tickled to l sign five degrees.
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From there we can write if e mg 10 5
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degrees, we'll be equal Thio, this will be
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a k e kills where kun squared divided by to
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l signed five degrees square. This is the distance
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s So this will be called M g m g
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eating five Guineas. So Kay is actually caused him
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. So this should be a very small then from
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here we can solve for a queue and queue will
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be equal to two l sign five degrees into mg
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10 5 degrees divided by Okay, so let me
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just write your cage escape. Hey, just is
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a constant K um then substituting values we get here
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two times zero point Crete. I'm signed. Five
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agrees into into square root off 0.2 times Sent about
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minus three times 9.8 time staying five degrees divided by
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8.99 times 10 to the power Fine is already okay
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then the k the charge we get finally charge will
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be cool too If you charge will be called to
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7.2 then I'm cool. This is our answer