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هلاااااااااااااوي ..
شحالكم شخباركم ؟؟؟
بليز اتمنى تتعاونون وياي اريد حلول لهالاسئله تبع مادة الميكانيك واريدهن قبل الاحد القادمه وشكرا لكم ..
Q:A uniform chain of length 1 is placed on a horizontal table with an initial overhang , barely sufficient to initiate motion. The coefficient of friction between the link and the table is µ.Deduce an expression for the velocity v when the overhang is x and hence determine V, the velocity when the lost link leaves the edge FIG 5.
Ans:-
V=√(gl/(1+µ)[〖(1+µ)〗^2 〖(x/l)〗^2-2µ[(1+µ)x/l)+µ^2)1/2)
V= gℓ/(1+µ)
Q:A solid circular cylinder of dia.0.25 m and weight 1500 N is free to roll on a 30˚ incline. A weight of 500 N is suspended from a cord passing over a frictionless pulley and is attached to the center of the cylinder as shown in Fig 12.
The system is released from rest. Assuming free rolling of the cylinder, determine the tension in the cord and the friction of the plane on the cylinder. Also determine the linear and angular velocity of the cylinder after it has rolled through 0.5 m.
( Ans: T=545 N ; F=68.2 N ; v=0.944 m/s ; W=7.55 rad/s)
شحالكم شخباركم ؟؟؟
بليز اتمنى تتعاونون وياي اريد حلول لهالاسئله تبع مادة الميكانيك واريدهن قبل الاحد القادمه وشكرا لكم ..
Q:A uniform chain of length 1 is placed on a horizontal table with an initial overhang , barely sufficient to initiate motion. The coefficient of friction between the link and the table is µ.Deduce an expression for the velocity v when the overhang is x and hence determine V, the velocity when the lost link leaves the edge FIG 5.
Ans:-
V=√(gl/(1+µ)[〖(1+µ)〗^2 〖(x/l)〗^2-2µ[(1+µ)x/l)+µ^2)1/2)
V= gℓ/(1+µ)
Q:A solid circular cylinder of dia.0.25 m and weight 1500 N is free to roll on a 30˚ incline. A weight of 500 N is suspended from a cord passing over a frictionless pulley and is attached to the center of the cylinder as shown in Fig 12.
The system is released from rest. Assuming free rolling of the cylinder, determine the tension in the cord and the friction of the plane on the cylinder. Also determine the linear and angular velocity of the cylinder after it has rolled through 0.5 m.
( Ans: T=545 N ; F=68.2 N ; v=0.944 m/s ; W=7.55 rad/s)
.gif "Smiles (64)")
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