- #1

Alexanddros81

- 177

- 4

## Homework Statement

When a particle moves along the helix shown, the componentsof its position vector are

x=Rcosωt , y = Rsinωt , ##z=-\frac h {2π} ωt##

where ω is constant. Show that the velocity and acceleration have constant magnitutes,

and compute their values if R=1.2m, h=0.75m, and ω=4π rad/s

## Homework Equations

## The Attempt at a Solution

for a start I would like someone to tell me by computing v

_{z}= dz/dhxdh/dt

what dh/dt is equal to? Since h = 0.75m = constant, then v

_{z}=0 and a

_{z}= 0

Is my asumption correct?