The graph below shows the angular position vs. time of a small piece of clay on a potter’s wheel.?
- billrussell42Lv 72 months ago
angular acceleration α in rad/s²
ω = Δθ/Δt = (75–25) rad / 10s = 5 rad/s
but ω is constant, so α is zero
but from the answers, you want something else... with units of m/s²
linear tangental acceleration, αt
α = αt/r
at = rα
since α = 0, linear tangental acceleration is zero.
or, do you mean centripetal acceleration ?
Centripetal acceleration is
a = Vdθ/dt = ω²r = Vω = V²/r
a = ω²r = 5²0.14 = 3.5 m/s²