Question
A constant torque of 27.2 N · m is applied to
a grindstone for which the moment of inertia
is 0.158 kg · m2.
Find the angular speed after the grindstone
has made 18 rev.
Assume the grindstone
starts from rest.
Answer in units of rad/s
a grindstone for which the moment of inertia
is 0.158 kg · m2.
Find the angular speed after the grindstone
has made 18 rev.
Assume the grindstone
starts from rest.
Answer in units of rad/s
Answers
a = 27.2/.158 = 172 radians/second^2
18*2pi= 0 + 0t + (1/2)(172)t^2
113 = 86 t^2
t = 1.15 seconds
w = 0 + a t
w = 172*1.15 = 197 radians/second
18*2pi= 0 + 0t + (1/2)(172)t^2
113 = 86 t^2
t = 1.15 seconds
w = 0 + a t
w = 172*1.15 = 197 radians/second
Related Questions
Three forces are applied to a box wrench. find the total torque about the bolt in newton-meters caus...
A constant torque of 22.9 N·m is applied to a grindstone whose moment of inertia is 0.168 kg·m2. Usi...
An electric motor exert a constant torque of 10Nm on a grindstone about the shaft is 2.0kg/m². If th...
An electric motor exerts a constant torque of 10N⋅m to the shaft of a grindstone with mass 16kg a...