پاسخ : درخواست سؤال مکانیک
P. 4324. One end of a thread of length
l=1 m is attached to an inclined plane of angle of elevation of
=30[SUP]o[/SUP]. A point-like body of mass
m=1 kg is attached to the other end of the thread as shown in the
figure. The body is released without initial speed, such that the thread is tight and horizontal. The coefficient of friction between the slope and the body is
=0.2.
a) Determine the maximum speed of the sliding body.
b) Find the tension in the thread when the angle between the thread and the horizontal is first
=60[SUP]o[/SUP].
c) In which position of the thread will the tension be maximum?
(5 points)