Recent content by alanm

Hi All, can some one please help with this. a cue stick strikes a stationary pool ball with an average force of 51N over a time of 12ms. the ball has a mass of 0.22kg, what speed does the ball have just after impact/ I am struggling with this. thanks

thanks, I came up with the cosine rule but struggled to get there. alan

hi, the bits I need are the angles between each set of forces. I am just not clear on how to do this. alan

I have 3 forces, I assume that the resultant is equilibrium, that is just a guess. a - 12N b - 5N c - 13N how do i calculate the angles between the forces. I think I have to use the cosine rule but am not really sure. I have a book Physics made Simple but it doesn't really help Alan