Chapter 2, Problem 64AP

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# A player holds two baseballs a height h above the ground. He throws one ball vertically upward at speed v0 and the other vertically downward at the same speed. Calculate (a) the speed of each ball as it hits the ground and (b) the difference between their times of flight.

(a)

To determine
The final speed of each ball.

Explanation

Given Info: The initial velocity of the ball is v0 , the acceleration of the balls âˆ’g and the displacement of the balls is âˆ’h .

Explanation:

The formula used to calculate the final velocity of each ball is,

v=vi2+2aÎ”y

Here,

Î”y is the displacement of the ball

v is the final velocity of the ball

vi is the initial velocity of the ball

a is the acceleration

Substitute v0 for vi , âˆ’g for a and h for Î”y to find v

(b)

To determine
The difference between the times of flights of the ball.

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