The upward normal force exerted by the floor is 620 N on an elevator passenger who weighs 650 N.

What is the magnitude of the acceleration?

What is the direction of the acceleration? (upward or downward)

The units used for acceleration are m/s^2, however there is a different measurement that is needed. Acceleration, as with velocity is a vector value. That means that you will need to determine your direction too. Additionally, acceleration could be either positive or negative.

According to Netwon’s second law, the acceleration is:

^{2}.