Imagine that you are at the park with a friend one day when you and your friend see someone casually toss a sandwich wrapper on the ground. Your friend comments "How crude! People should not litter." and picks the trash up to drop it in a nearby trash receptacle. Your friend's words represent

Injunctive norms.

Explanation:

An injunctive norm can be defined as those unwritten sets of beliefs and rules that are supposed to be approved or disapproved by others. It is a perception of approved and disapproved behaviours.

In the given case, the norm that one should not litter is injunctive. It is an injunctive norm because though it is not written in a law or rules but it is perceived to be an approved behaviour that one should not litter as it hampers the beauty of the environment and create an unclean environment.

So, the correct answer is an injunctive norm.

An Injunctive norm.

Explanation:

Injunctive norm is demonstrated as the perceptions that people carry about behaviors or tendencies that ought to be displayed on the basis of its ability to be approved or disapproved by the people typically.

As per the given description, the friend's words signify 'the injunctive norm' as he displays the perception about a behavior that ought to be done in the situation by saying 'people should not litter' as this kind of behavior is usually not approved or accepted by the people while 'putting the trash in the dustbin' displays the approved behavior. Thus, the words represent 'an injunctive norm.'

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