A person throws three stones off of a cliff of height h with the same speed v. He throws Rock A almost vertically upward, Rock B horizontally, and Rock C almost vertically downward. Ignoring air resistance, which stone hits the ground with the greatest speed? В h

A person throws three stones off of a cliff of height h with the same speed v. He throws Rock A almost vertically upward, Rock B horizontally, and Rock C almost vertically downward. Ignoring air resistance, which stone hits the ground with the greatest speed? В h

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter2: Newtonian Mechanics-single Particle

Section: Chapter Questions

Problem 2.34P: A particle is released from rest (y = 0) and falls under the influence of gravity and air...

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Concept explainers

Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.

Question

A person throws three stones off of a cliff of height h with the same speed v. He throws Rock A
almost vertically upward, Rock B horizontally, and Rock C almost vertically downward. Ignoring air
resistance, which stone hits the ground with the greatest speed?
| A
h

Rock A
Rock B
Rock C
Rocks A and C hit with the same speed, faster than B.
All three rocks hit with the same speed.

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