A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force on a cord to keep the airplane flying around her at a constant speed of 18.0 meters per second in a horizontal, circular path with a radius of 25.0 meters. Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this circular path.

A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force on a cord to keep the airplane flying around her at a constant speed of 18.0 meters per second in a horizontal, circular path with a radius of 25.0 meters. Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this circular path.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 46PQ

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force
on a cord to keep the airplane flying around her at a constant speed of 18.0 meters
per second in a horizontal, circular path with a radius of 25.0 meters.
Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this
circular path.
Remember to label all known and unknown variables then determine which formula to use. You
may even draw it out to help visualize the problem.

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