Three chairs were rolling across a flat office floor . The blue and red chairs are the same mass , and the have more force than the yellow chair . Each chair was hit by another chair, but not from the same direction. Which chairs experienced the strongest force when hit?

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

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The angle measures would be 70 and 90