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College Physics

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

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BuyFindarrow_forward

College Physics

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

A ball is thrown vertically upward. (a) What are its velocity and acceleration when it reaches its maximum altitude? (b) What is the acceleration of the ball just before it hits the ground?

(a)

To determine
The velocity and acceleration of a ball at maximum height

Explanation

The acceleration acting on a body moving upward is the acceleration due to gravity in the opposite direction of its velocity.

When the ball moves upward, negative acceleration will act on the ball. The magnitude of the acceleration will be equal to the acceleration due to gravity. However, the acceleration will be opposite to the direction of velocity. This will slow the ball down. The velocity becomes zero when it reaches the maximum height. Thus, the velocity is zero at maximum height.

At maximum height, the force acting on the ball will be gravitational attraction. The ball will be under gravity...

(b)

To determine
The acceleration of the ball just before it hits the ground.

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