PHSX 114 - Homework #17

# PHSX 114 - Homework #17 - acceleration[Num[Units towards...

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PHSX 114 – HOMEWORK # 17 Question 1: (1 point) The blades in a blender rotate at a rate of 6,400 rpm . When the motor is turned off during operation, the blades slow to rest in 3.0 s . What is the angular acceleration as the blades slow down? Note : Use radians for angular units. Enter scientific notation as 1.23E4. Number Units Question 2: (2 points) A rotating merry-go-round makes one complete revolution in 4.5 s . Enter scientific notation as 1.23E4. a. What is the linear speed of a child seated 1.2 m from the center? [Num] [Units] b. Calculate the magnitude of her acceleration and select the most appropriate directional aspect of her

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Unformatted text preview: acceleration. [Num] [Units] towards the center, tangent, away from the center Question 3: (2 points) 1 A 6.0E1-cm-diameter wheel accelerates uniformly about its center from 1.00E2 rpm to 2.90E2 rpm in 5.0 s . a. Determine the angular acceleration. [Num] [Units] b. Determine the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.5 s after it has started accelerating. Enter scientific notation as 1.23E4. Radial acceleration = [Num] [Units] Tangential acceleration = [Num] [Units] 2...
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## This note was uploaded on 04/09/2008 for the course PHSX 114 taught by Professor Davis during the Spring '08 term at Kansas.

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PHSX 114 - Homework #17 - acceleration[Num[Units towards...

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