BuyFindarrow_forward

College Physics

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

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

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

Determine which of the following moving objects obey the equations of projectile motion developed in this topic. (a) A ball is thrown in an arbitrary direction. (b) A jet airplane crosses the sky with its engines thrusting the plane forward. (c) A rocket leaves the launch pad. (d) A rocket moves through the sky after its engines have failed. (e) A stone is thrown under water.

To determine
Which of the objects obey the equations of projectile motion.

Explanation

A projectile motion is having a certain set of equations that apply to a set of moving objects. For the object to obey the projectile equations, the motion of the body should be under the influence of gravity alone. Also, the only acceleration that must be acting on the body is the acceleration due to gravity, directed vertically downwards.

Conclusion:

A ball thrown arbitrarily has only the gravitational force acting on it and it moves with the initial velocity supplied by the boy. As the motion is under the influence of gravity alone, the projectile equations are obeyed here.

After the engines of a rocket have failed, the motion of the rocket is with the help of gravity alone, using the initial velocity provided by the engines before they died. So, the projectile equations are obeyed here.

Thus, the correct choices are (a) and (d)

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Saturation refers to the ability of a fat to penetrate a barrier, such as paper. whether or not a fatty acid ch...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What is the structure and function of a mitochondrion?

Biology: The Dynamic Science (MindTap Course List)

What are the sources of compounds that undergo gluconeogenesis?

Chemistry for Today: General, Organic, and Biochemistry