You are standing on a cylindrical raft, which is floating on water. Initially the raft together with you is rotating with angular velocity =0.1 s-¹. Then you start running along the periphery in order stop the rotation of the raft. How fast and in what direction should you run? Your mass is 75 kg, the raft has mass 200 kg and its radius is 15 m.

You are standing on a cylindrical raft, which is floating on water. Initially the raft together with you is rotating with angular velocity =0.1 s-¹. Then you start running along the periphery in order stop the rotation of the raft. How fast and in what direction should you run? Your mass is 75 kg, the raft has mass 200 kg and its radius is 15 m.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

You are standing on a cylindrical raft,
which is floating on water. Initially the raft
together with you is rotating with angular
velocity =0.1 s-¹ . Then you start running
along the periphery in order stop the
rotation of the raft. How fast and in what
direction should you run? Your mass is 75
kg, the raft has mass 200 kg and its radius
is 15 m.

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