An electric fan has blades of length 30cm as measured form the axis of rotation. If the fan is rotating at 1220 r.p.m(revolution per minute), the acceleration of a point on the tip of the blade is about A) 4732,6 m/s? B) 236.63 m/s? C) 17.04 x 10° m/s² D) 4000m/s

An electric fan has blades of length 30cm as measured form the axis of rotation. If the fan is rotating at 1220 r.p.m(revolution per minute), the acceleration of a point on the tip of the blade is about A) 4732,6 m/s? B) 236.63 m/s? C) 17.04 x 10° m/s² D) 4000m/s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 37P: Two planets in circular orbits around a star have speed of v and 2v . (a) What is the ratio of the...

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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

An electric fan has blades of length 30cm as measured form the axis of rotation. If the fan is
rotating at 1220 r.p.m(revolution per minute), the acceleration of a point on the tip of the blade is
about
A) 4732,6 m/s²
B) 236.63 m/s?
C) 17.04 × 10° m/s²
D) 4000m/s?
O A
O D
O C

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