- #1
gcombina
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A grindstone,initially at rest,is given a constant angular acceleration so that it makes 20.0 rev?
A grindstone,initially at rest,is given a constant angular acceleration so that it makes 20.0 rev in the first 8.00 s. What is its angular acceleration
Answer is 3.93 rad/s^2
My attempt:
α= Δω/ΔT
I converted 20 rev/8s to radians and I got 15.7 rad/s, then I plugged in the numbers into the equation above ^
α= 15.7 rad/s (wrong answer)
What am I doing wrong?
A grindstone,initially at rest,is given a constant angular acceleration so that it makes 20.0 rev in the first 8.00 s. What is its angular acceleration
Answer is 3.93 rad/s^2
My attempt:
α= Δω/ΔT
I converted 20 rev/8s to radians and I got 15.7 rad/s, then I plugged in the numbers into the equation above ^
α= 15.7 rad/s (wrong answer)
What am I doing wrong?