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 2 years ago
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
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

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

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

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

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

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

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.3For 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.

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

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

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.3That 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.
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