Question

two blocks A and B each having a mass of 20 kg rests on a frictionless surface as shown in figure block M assuming the police to be light and friction less and string to be light find the time required for block a to move down the plane by 1 m starting from rest the tension in the string connecting the two blocks

Answer 1

provided with written answer.... tell me if mistake persist.... will be welcomed greatfully
1.15 seconds