A ball is thrown vertically upward at a 19.6m/s. For its complete trip, it's average speed is?

The average velocity of an object is given by:

Average velocity = total displacement / total time

First, we calculate the time taken to reach the maximum height of the ball. This occurs when the final velocity is 0.

Vf = Vi + at

0 = 19.6 - 9.81 * t

t = 2 seconds

The total trip will be of 4 seconds (2 seconds up, 2 seconds down)

The total displacement is given by:

s = ut + 1/2 * at²

s = 19.6 * 2 - 0.5 * 9.81 * 2²

s = 19.6 meters

This is the distance maximum height, so the total height is

19.6 * 2 = 39.2 meters

Average velocity = 39.2 / 4

Average velocity = 9.8 m/s

Explanation:

Hope this helped!

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a and c

explanation:

both a and c are correct answers to my knowledge, it's been a bit since i've done anything related to magnetic fields, but it should be right.

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explanation: