The roller coaster car travels down the helical path at constant speed such that the parametric equiations that define its position are             x = c sin kt , y = c cos kt, z= h - bt, where c, h and b are constants. Determine the magnitudes of its velocity and acceleration.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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The roller coaster car travels down the helical path at constant speed such that the parametric equiations that define its position are

            x = c sin kt , y = c cos kt, z= h - bt, where c, h and b are constants.

Determine the magnitudes of its velocity and acceleration.

Expert Solution
Step 1

Given data as pr question

x = c sin kt ,

y = c cos kt,

z= h - bt,

where c, h, and b are constants.

Component of the velocity of the roller

vx=dxdt=d(csinkt)dt=ck.cos(kt)simillarly for vy and vz,wegetvy=ck.sin(kt)vz=bNowax=dvdt=d(ck.coskt)dt=ck2.sin(kt)simillarly for ay and az,wegetay=ck2.cos(kt)az=0

writtingequationsforvelocityandaccelerationvx=ck.cos(kt)ax=ck2.sin(kt)vy=ck.sin(kt)ay=ck2.cos(kt)vz=baz=0

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