Answered: An object of mass 1.0 kg moves in a…

An object of mass 1.0 kg moves in a circle of radius 1.0 m at constant speed of 2.0 m/s. Find the work done by the centripetal force that accelerates the object. [centripetal force = mv2/r]

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter4: Work And Energy

Section: Chapter Questions

Problem 2MC: Which of the following is a unit of work? (4.1) (a) W (b) J s (c) N/s (d) N m

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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

An object of mass 1.0 kg moves in a circle of radius 1.0 m at constant speed of 2.0 m/s. Find the work done by the centripetal force that accelerates the object. [centripetal force = mv²/r]

Select one:
о а. 8.0 J
O b. 13 J
О с. 25 J
O d. 0 J
О е. 4.0 J

Definition Definition Force on a body along the radial direction. Centripetal force is responsible for the circular motion of a body. The magnitude of centripetal force is given by F C = m v 2 r m = mass of the body in the circular motion v = tangential velocity of the body r = radius of the circular path

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