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A sanding disk with rotational inertia 1.22x10^-3 kgm^2 is attached to an electric drill whose motor delivers a torque of 15.8 Nm
a) find angular momentum
b) find angular speed of the disk 33.0ms after the motor is turned on.
L = Iω
τ = Iα
we can find angular acceleration with what we are given α = τ/I
but I'm completely stumped on how to find L without having time.
any hints?
thanks
a) find angular momentum
b) find angular speed of the disk 33.0ms after the motor is turned on.
L = Iω
τ = Iα
we can find angular acceleration with what we are given α = τ/I
but I'm completely stumped on how to find L without having time.
any hints?
thanks