Recent content by mnandlall

Both angular frequency in Simple Harmonic Motion and angular velocity in Rotational Motion are given the same symbol, "omega" (w). I was wondering if these two values are equivalent. For instance, if there was a cylinder attached to spring and rolling down a ramp, would the angular frequency of...

Alright, this makes a lot of sense. Thanks for clearing that up.

Hello, I was wondering if the moment of inertia of a 2-D triangle about its center of mass depends on the actual mass of the triangle. Formulas that I have found say that I = (bh^3)/36. Does this mean that the moment of inertia of triangles with the same dimensions will be the same about their...

Do you need to know the mass of the object to figure out the answer? I mean, what if the object was made of a different material, perhaps gold. If all of the same dimensions are used, will there be a different answer?

Yes, this is what I was asking. Sorry if I was unclear about it.

Okay, I will try to think about it that way, and see where I get. Thanks.

Do you mean to say that regardless of where I cut the circle, the new centre of mass will always be at the centre of the circle?

Alright, but what if they do not share the same common center?

If I cut a perfect circle into a square piece of tin, how will the centre of mass be affected? I am making the assumption that I know the dimensions of the square as well as the diameter of the circle being cut. Let's say that I also know the position of the centre of the circle relative to the...

I attempted to do the following: F = ma, but F is provided by the motor. Therefore, P = Fv 60 000W = 24.5 x F F = 2450 N 2450N = 1000kg x a a = 2.45m/s^2 Does this seem like a reasonable approach?

Homework Statement Car, mass 1000kg, accelerates from rest in straight line using constant mechanical power of 60kW. What is speed and acceleration after 5s. Homework Equations W = Kf - Ki P= dE/dt The Attempt at a Solution I've already worked out that the speed will be...