a skydiver is falling down through the air but has not reach terminal velocity (not consistent velocity )(considered air resistance)​

We are to find the acceleration.

-9.2 m/s²

Explanation:

Total force is expressed as;

ΣF = F_d + F_g

We are given;

F_d = 50 N

Mass of skydiver = 78 kg

Thus, F_g = 78 × -9.8

g is negative since it is a free fall

Thus;

F_g = -764.4 N

ΣF = 50 - 764.4

ΣF = -714.4 N

Formula for acceleration is;

ΣF = ma

a = -714.4/78

a ≈ -9.2 m/s²

A continued schedule of reinforcement (CRF) happens when reinforcement  is delivered after each and ever single targeted behavior

While a intermittented schedule of reinforcement (INT) is when reinforcement is delivered after only a few behaviors or responses not after each and every single one