**There are two masses. Mass A is 0.2 kilograms, and is resting on a 30-degree slope. Mass B is 0.3 kilograms, and is hanging past the end of the slope from an inextensible string which passes over a smooth pulley.**

Find the acceleration, a, of the particles when released from rest.

Find the acceleration, a, of the particles when released from rest.

"T" is the tension in the string. Then

0.3g - T = 0.3a

T - 0.2g * sin(30 degrees) = 0.2a

But the answer doesn't match the back of the book. What did I do wrong?