What type of diagram should be drawn when applying Newton's second law?

[Comet1592]

Homework Statement

A child is flying a large kite of mass 4.3 kg on a windy day. At the moment shown the tension from the string on the kite has a magnitude of 8.8 N and makes an angle of θ = 34.3o from the vertical, and the acceleration of the kite has a magnitude of ak = 7.43 m/s2 and makes an angle of ϕ=39.3o from the vertical as shown in the figure below. The only forces felt by the kite are its own weight, the tension from the string, and a force from the wind.

Relevant Equations

F=ma
?
?

Honestly I have no idea how to solve this. Can anyone help?

 

[TSny]

According to forum rules, we are not allowed to offer help unless you first show some attempt at solving the problem.
https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/
So, at the risk of being heavily fined, , I will offer the following scant help.

Fill in the blank:
When applying Newton's second law, it is almost always a good idea to first draw a particular type of diagram known as a __________ diagram.