Recent content by dman_PL

So knowing knowing radius and mass of the object, what is the equation to find angular acceleration?

Homework Statement Torque is a minimum when the direction of a force is parallel to the radius vector. True or False Homework Equations None The Attempt at a Solution I say true because my book gave an example of a seesaw, where if you push down perpendicular to the radius, the...

Homework Statement Two identical pucks, each of inertia m, are connected to a rod of length 2r and negligible inertia that is free to rotate about its center. A third puck of inertia m strikes one of the connected pucks perpendicular to the rod with a speed vi Write the expression for...

Alright! ill just keep looking into it, thanks :)

It kind of makes sense. When you talk about kinetic energy, I had someone of a similar problem in which it asked to find how high this object jumped, and I think to calculate the answer I used h=-Δk/mg. Is this what I should sort of end up getting as well?

So to find α, I am still using Δω/Δt correct?

Homework Statement A block of inertia m is launched up a rough incline by a spring, as shown in the figure. The coeffiecient of kinetic friction is µk. The angle of incline is θ, and the spring is parallel to the surface of the incline. The spring constant is k, and the spring has been...

Thanks :) i guess my initial equation was off

Homework Statement An Eskimo pulls a 100kg sled with a constant force through the snow at a constant speed of 1.5m/s. He applies this force by pulling on a rope at 30◦ to the horizontal. There is a coefficient of kinetic friction between the sled and the snow of 0.1 1)Find the tension in...

Homework Statement Can someone check if this is right? The time seems okay, but the work I feel is wrong A ball with moment of inertia 0.1kg · m2 is rotating on a table, but friction is slowing it down with constant angular acceleration. The ball is originally spinning at 2π radians per...

Thanks for the help (sorry for being late on this). I did end up getting it, and I was really overthinking it. Thanks again :)

I got the plane to travel around 270 Miles. As far as quadratic equations go, I was definitely not even thinking about that. All that is stuck on my paper is like x^2+y^2=c^2 with x being the west direction and y being the south.

I'm not sure if the couple of hours I have spent staring at this problem have helped me and I am probably over thinking it, but I am lost.

See I know how to do the trig, but I just cannot find the lengths of the sides other than the hypothenus

A car and a small plane travel from the same starting point to the same destination by different routes. The plane travels in a straight line for 65 minutes at an average speed of 250mph (1m/s = 2.24mph). The car travels 370 miles along a route that goes due south and then due west, further west...