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# Mechanics help I have tried everything plz show me how to do it watch

1. A particle P of mass 5kg rests on a rough inclined plane of angle arcsin 3/5. The coefficient of friction between P and the plane is 1/8. P is connected to a particle Q of mass 4kg by a light inextensible string which lies along a line of greatest slope of the plane and passes over a smooth fixed pulley at the top of the plane. Q is hanging freely 2m above a horizontal plane. The system is released from rest with the string taut.

Assuming P does not reach the pulley, find:
a) the acceleration of the system
2. Is this AS or A2?
3. (Original post by yeah1106)
A particle P of mass 5kg rests on a rough inclined plane of angle arcsin 3/5. The coefficient of friction between P and the plane is 1/8. P is connected to a particle Q of mass 4kg by a light inextensible string which lies along a line of greatest slope of the plane and passes over a smooth fixed pulley at the top of the plane. Q is hanging freely 2m above a horizontal plane. The system is released from rest with the string taut.

Assuming P does not reach the pulley, find:
a) the acceleration of the system
Have you drawn a diagram?

How can you use all of the information to find 'a'?
4. (Original post by yeah1106)
A particle P of mass 5kg rests on a rough inclined plane of angle arcsin 3/5. The coefficient of friction between P and the plane is 1/8. P is connected to a particle Q of mass 4kg by a light inextensible string which lies along a line of greatest slope of the plane and passes over a smooth fixed pulley at the top of the plane. Q is hanging freely 2m above a horizontal plane. The system is released from rest with the string taut.

Assuming P does not reach the pulley, find:
a) the acceleration of the system
First thing first: draw a diagram and label all forces at the right direction, and post your drawing and solution sos we can see where you went wrong.

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