A child is pushing a merry-go-round of radius 2 m. The angle through which the merry-go-round has turned varies with time according to (0.4t + 0.012t^3) radians. Determine the tangential acceleration after 5 seconds.

A child is pushing a merry-go-round of radius 2 m. The angle through which the merry-go-round has turned varies with time according to (0.4t + 0.012t^3) radians. Determine the tangential acceleration after 5 seconds.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 45A

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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 child is pushing a merry-go-round of radius 2 m. The angle
through which the merry-go-round has turned varies with time
according to (0.4t + 0.012t^3) radians. Determine the tangential
acceleration after 5 seconds.

A dart is thrown horizontally toward X at 20m/s ad shown. It hits
Y 0.1s later. The distance XY is.

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