physics

A string going over a massless frictionless pulley connects two blocks of masses 4.4 kg and 11 kg. As shown on the picture below, the 4.4 kg block lies on a 23◦ incline; the coefficient of kinetic friction between the block and the incline is μ = 0.29. The 11 kg block is hanging in the air.
The 11 kg block accelerates downward while the 4.4 kg block goes up the incline with the same acceleration.

Given g = 9.8 m/s2, what is the accelera- tion of the system?
Answer in units of m/s2.

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asked by Sarah

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