Question

Problem 74b

Answer 1

Given information

A ball is shot from the top of a building with a initial velocity of at an angle above the horizontal.

A nearby building is of same height and away.

Step-by-step explanation

Step 1.

As the nearby building is away. And  we know , Here is distance, is velocity and is time.

As distance here is horizontal distance so we  take the horizontal component of velocity i.e.   

So substituting the values in  

 

Hence time