Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string

Question

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of ? = 42.0°. The objects are released from rest, and m2 slides 1.10 m down the incline in 3.90 s.

(a) Determine the acceleration of each object. m1 1 . m/s2 upward
m2 2 . m/s2 down the incline

(b) Determine the tension in the string.
3 . N

(c) Determine the coefficient of kinetic friction between m2 and the incline.
4 .
I got 0.27,but it is the incorrect answer

Explanation / Answer

Diagram please :(

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