For a flourish at the end of her act, a juggler tosses a single ball high in the air. she catches the ball 3.3 s later at the same height from which it was thrown.
part a what was the initial upward speed of the ball?
express your answer to two significant figures and include appropriate units.

Initial speed of the ball, u = 16 m/s

Explanation:

It is given that, a juggler tosses a single ball high in the air. She catches the ball 3.3 s later at the same height from which it was thrown. Let u is the initial upward speed of the ball.

At the highest point, the final speed of the ball, v = 0

Using equation of motion as :

a = -g

Let are time of ascent and descent respectively.

So, total time,

u = 16.17 m/s

or

u = 16 m/s

So, the initial upward speed of the ball is 16 m/s. Hence, this is the required solution.

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

hey , the answer is c