1. The problem statement, all variables and given/known data Hi all, I have solved these problems just wanted to see if it's all ok problem 1: a trolley starts at the lowest point of a diagonal plane with a 20m/s speed. Its acceleration is 4m/s^2 going downhill, the trolley goes up then slows until it reaches 0 speed and then goes down the plane with the same acceleration a. what is the slopes incline? Its is known that the trolley moves without friction? problem 2: A weight that has m = 12Kg is pendent in rest on a string attached to two other strings and creating an identical β = 60° with the ceiling, calculate the tension of all strings 2. Relevant equations 3. The attempt at a solution solution 1: V0 = 20m/s a = -4m/s2 g = 10m/s2 m1g • sinα = m1a N = m1g • cosα -m1g • sinα = m1a Sinα = a/-g Sinα = -4m/s2/-10m/s2 α = 23.58° solution 2: T1 = mg m = 12Kg mg = T1 = 120N T1 = T2cos30° + T3cos30° T1 = cos30° • (T2 + T3) 120N = cos30° • (T2 + T3) T2 + T3 = 120/cos30° = 138.56 T2sin30° = T3sin30° T2 + T3 = 138.56 2T = 138.56 T2 = T3 = 69.3 TY!