Help edugenwiley plus.com FULL SCREEN PRINTER VERSION BACK NEXT, Chapter 28, Pro

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Help edugenwiley plus.com FULL SCREEN PRINTER VERSION BACK NEXT, Chapter 28, Problem 046 In the figure, a metal wire mass m 20.6 can lide with negligible friction on two horizontal parallel ralls sepa by connected to the rails, track in a vertical uniform time (a) producing a constant current 7.86 of and rails (even as the wire moves). At t- 60.3 ms, speed and i mA in the direction of motion? (a) Number Units lem (b) the tolerance is +/-2% click if you would like to show work for this question ORen snow Work Question Attempts o of 5 used SAME FOR LATTR SUSuerT ANSWER Pretao polisy go 20oo-2017 Donn Wilen s sons. tase Ali Rights Reserved. A civis on John wan Soas Inc. Version 4.22.2.

Explanation / Answer

Here ,

m = 20.6 mg

d = 1.79 cm = 0.0179 m

B = 0.0474 T

i = 0.00786 A

part a) let the acceleration of the bar is a

Using second law of motion

a = (0.0474 * 0.00786 * 0.0179)/(20.6 * 10^-6)

a = 0.324 m/s^2

at t = 60.3 ms

speed of the wire = 0.324 * 60.3 *10^-3

speed of the wire = 0.0195 m/s

speed of the wire = 1.95 cm/s

b)

as the direction of force is to the left

hence , the direction of motion is to the left

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