Test and analysis: Peaches are static, so they are subjected to gravity and support. The gravity direction is vertical downward, and the supporting force direction is vertical upward, all of which act on the peach. These two forces are equal in size, so the two forces in the schematic diagram should be equal in length and are a pair of balanced forces.
So choose C.
Comments: This topic mainly examines the drawing method of the schematic diagram of force. The key is to find the point and direction of force. At the same time, the direction of gravity and pressure is also investigated.