Can't find normal and tension force

[badboyben03]

i have two problems here where i have to find individual forces.

problem 1: i can't find the normal force. how would i do it?

<img src=[PLAIN]http://img1.photobucket.com/albums/0903/badboyben03/p01.png>

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i tried 2123.328N *(2825.008-701.68) and also tried 701.68N but neither of them worked.


problem 2: i can't find the tension force

<img src=[PLAIN]http://img1.photobucket.com/albums/0903/badboyben03/p03.png>

[/PLAIN]
i tried 32.438N and 132.948 *(165.386-32.438) but also neither of them worked.

please help me. thanks.

 

[arildno]

Problem 1.
The normal force must produce the required centripetal acceleration.
This is also the case with problem 3.

 

[jamesrc]

Problem 1: Remember that in Newton's 2nd law, F_net is a vector sum that reduces to (in this problem):
F_net = F_norm-F_grav
Plug in your values appropriately to solve for the normal force on the pilot.

Problem 2: Same exact idea. You need to consider the directions of each force in order to add them together.