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Block A is on an incline that makes an angle of 30.0o above the horizontal. It i

ID: 2060647 • Letter: B

Question

Block A is on an incline that makes an angle of 30.0o above the horizontal. It is attached via a cord over a frictionless pulley at the top of the incline to a second block, B, that is hanging vertical above the ground. Block B hangs a distance of 2.0 m above the ground. The mass of A is 2.60 kg and the mass of B is 2.20 kg. The
coefficient of friction between A and the incline is µk = 0.180. The picture would be similar to that of figure 5.62 on page 173.
A) Draw the free-body diagrams for all the forces acting on bodies A and B and write the net force equations for both block.
B) Solve for the acceleration of block B and for the time for B to hit the ground.

Explanation / Answer

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