Kinematics and acceleration from problem set

[Lebelee]

Hey,

I am totally lost on this problem set, can anyone lend me some hints and clues as to where to begin on these problems?

their all simple F=ma conept but thiers inner concepts within them and i get lost, any hints and clues would really be appreciated.

the problem set is located at :

http://www.physics.ubc.ca/~mattison/Courses/Phys170/p170-ps7.pdf

Thanks :)

 

[Lebelee]

anyone ? :(

 

[kevindeschamp]

did the professor post the solution?

Kevin