   Chapter 2, Problem 65AP

Chapter
Section
Textbook Problem

A ball thrown straight up into the air is found to be moving at 1.50 m/s after rising 2.00 m above its release point. Find the ball's initial speed.

To determine
The initial speed of the ball.

Explanation

Given Info: The acceleration of the ball is 9.80m/s2 , the final velocity of the ball is 1.50m/s , and the displacement of ball is 2.00m .

Explanation:

The formula used to calculate the initial velocity of the ball is,

v0=v22aΔy

Here,

Δy is the displacement of the ball

v is the final velocity of the ball

v0 is the initial velocity of the ball

a is the acceleration of the ball

Substitute 1.50m/s for v , 9.80m/s2 for a and 2

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