Homework Statement
Each of the questions are either increase, decrease, equal, or undetermined.
1) You are sitting on a rotating chair, holding a 2 kg mass in each arm outstretched. When the masses are dropped, your angular momentum -------.
2) You sit in a rotating chair holding 2 kg...
Homework Statement
A wheel has bicycle of diameters 109.0 cm. The bicyclist accelerates from rest with constant acceleration to 16.3 km/hr in 16.5 s. What is the angular acceleration of the wheels?
Homework Equations
w=v/r
alpha= w/t
The Attempt at a Solution
I think I'm...
Ah, so it would be false, because even if its linear momentum is zero (object not moving), the object can still rotate around its center of mass, creating rotational momentum.
Homework Statement
The following statements are true/false
1) The net torque on an object is equal to its moment of inertia times angular acceleration.
2) Angular momentum will be conserved if there are no external torques acting on it.
3) When its linear momentum is zero, the angular...
Thanks a lot, 1-3 seem to be correct, but I just realized I incorrectly posted #4 and #5 they should read (edited above):
4) The time it takes for block 1 to fall from h to the floor is (greater than/less than/equal to) the time it takes block 2 to fall from h to the floor.
So wouldn't this be...
Ok, first time posting...hopefully I do this correctly, as I have found myself in a bind on this one. It is a question comparing the mechanical energy of two masses falling in different ways in which you are given the option of greater than, less than, or equal to.
Homework Statement
The...