In the technique, a person is presented with a larger request before being presented with the real request; in the technique, a person is presented with a smaller request before being presented with the real request.

A) "Foot in the Door" Technique.

B) "Door in the face" Technique.

Explanation:

Compliance Techniques are

Strategies that are used to persuade individuals to comply with the demands of others.

Three types of compliance techniques are:

1) Foot-in-the-door

2) Door-in-the-face

3) Low-balling

The "Door in the face" Technique is a compliance technique whereby a large request is made followed up by a small request. That is to say, a request that is larger than the actually request is made first, before the real request is presented.

While the The 'Foot-In-The-Door' Technique

A compliance techniques whereby a small request is made followed up by a larger request. A small request is made after which the real request which is usually larger is now presented.

we can solve this via the kinematic equation:

where the vertical velocity is zero and so:

since the height of the building is 29.3 meters then:

the ball was in motion for approximately 2.45 seconds