A student throws a 1.8kg ball horizontally off the top of a building with an initial speed 3.85 m/s. At the same time, another student throws a ball with equal mass along the same trajectory with an initial speed of 2.75 m/s. Which of the balls hits the ground first?

A student throws a 1.8kg ball horizontally off the top of a building with an initial speed 3.85 m/s. At the same time, another student throws a ball with equal mass along the same trajectory with an initial speed of 2.75 m/s. Which of the balls hits the ground first?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: Motion In Two Dimensions

Section: Chapter Questions

Problem 4.8OQ: A girl, moving at 8 m/s on in-line skates, is overtaking a boy moving at 5 m/s as they both skate on...

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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

a. They travel the same time.

b. The slower moving ball.

c. The faster moving ball.

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