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zaphod
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A particle of mass 5kg is pulled along a smooth horizontal surfce by a horizontal string> if the acc of particle is 3ms2find the tension
 2 years ago
 2 years ago
zaphod Group Title
A particle of mass 5kg is pulled along a smooth horizontal surfce by a horizontal string> if the acc of particle is 3ms2find the tension
 2 years ago
 2 years ago

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zaphod Group TitleBest ResponseYou've already chosen the best response.0
@Callisto can i kw hw to apply the forces?
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
dw:1347114640040:dw Consider the horizontal, Summation F = T = ma = 5(3), isn't it?
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
dw:1347114778579:dw The vertical forces cancel out..
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
Note that smooth = friction = 0N Note sure if I'm in the right direction :
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
yes dw:1347114907153:dw
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
Why did you add that T?
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
in a horizontal string tension acts oppostely
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
Hmm.. I'm actually considering this part..dw:1347115073162:dw
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
yes then continue?
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
For that system, weight is balanced by the normal reaction. So, vertical forces cancel. Consider the horizontal force, since the surface is 'smooth', there is no friction acting on the particle. The only horizontal force acting on the system is tension. So, by Newton's 2nd law, T  f = ma , where f = 0, m=5 and a=3 So, you can find T.
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
f= 0N, m=5kg and a=3ms^2
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
:) get it why is force = 0
 2 years ago

keily Group TitleBest ResponseYou've already chosen the best response.0
Tension=5kg times 3m/s=15N
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
f is friction acting on the system by the surface. But the surface is smooth, so no friction acting on the system
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
Any questions?
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
nope clear :)
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
i thought there is an external force making the particle move, anyway nw i understnd
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
That external force is the tension. If you don't pull the string, there is no tension, the block doesn't move. Perhaps you can consider that system only. I mean the force applied to that system.
 2 years ago

zaphod Group TitleBest ResponseYou've already chosen the best response.0
yes thanks u so much :)
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.3
Welcome :)
 2 years ago
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