ebbamykaylow
ebbamykaylow ebbamykaylow
  • 16-12-2016
  • Physics
contestada

The 8.00-cm long second hand on a watch rotates smoothly.
What is its angular velocity?
What is the speed of the tip of the hand?

Respuesta :

scme1702
scme1702 scme1702
  • 21-12-2016
The watch hand covers an angular displacement of 2π radians in 60 seconds.

ω = 2π/60
ω = 0.1 rad/s

v = ωr
v = 0.1 x 0.08
v = 8 x 10⁻³ m/s
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