Plz help :)...tysm

Market economy

Explanation:

In a market economy, they change their things based on competition, in this question, it  said "he changed it based on the market" or in other words the competition

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