Qualification > Math
All Mechanics DOUBTS HERE!!!
halosh92:
--- Quote from: The Mysterious Dude on May 04, 2010, 04:59:10 pm ---can you please send the exact question paper. I need to see that.
--- End quote ---
its from my textbook actually :S
Khey [Rainbow]:
A large crate of mass 40kg lies at rest on rough horizontal ground. One end of the rope is attached to the crate and the rope makes an angle of 30 with ground as shown in the diagram. The tension of the rope is 150N and the crate is on the of moving along the plane.
By modelling the crate as a particle,
(a) Find the value of [mue], the cofficient of frction between the crate and the ground.
The rope remains at 30 degree to the ground but the tension init is increased to 200N.
(b) Find the acceleration of the crate.
Saladin:
Solving now, please be pateint. Will take 40 minutes.
Saladin:
--- Quote from: halosh92 on May 04, 2010, 04:56:37 pm ---two particles A and B of masses 0.5kg and 0.7kg respectively are connected by a light inextensible string. particle A rests on a smooth horizontal table 1m from a fixed smooth pulley and B hangs freely 0.75m above the floor. the system is released from rest with the string taut. after 0.5s the string breaks.
find:
a) the distance the particles haved moved when the string broke
b) the velocity of the particles when the string breaks
c) the furthur time that elapses before A reaches the floor, given that the table is 0.9m high.
how to do part c ??
--- End quote ---
u can also send me the book name and page number.
halosh92:
--- Quote from: The Mysterious Dude on May 04, 2010, 05:17:57 pm ---u can also send me the book name and page number.
--- End quote ---
heinemann modular mechanics for edexcel AS and A level
pg113
q11
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