Recent content by Mooshk

Homework Statement An object moves up and down an inclined, frictionless surface. 1) Draw a Velocity-Time Graph of this situation. 2) If there was friction, how would it impact the graph? Homework Equations Ek = 1/2 m v^2 Eg = mgh Ek = Eg I don't think the equations are necessary...

How would that model non-uniform circular motion? Or does that not matter since the friction force is perpendicular?

Homework Statement A box with mass 2kg is on the edge of a circular platform of radius 6.0m. The coefficient of friction between the platform and the box is 0.3. The platform accelerates. Determine the speed when the box slips off the edge.Homework Equations Fs = μsN F⃗ net=ΣF⃗ =ma⃗ a(t) =...

Thanks for the reply. Can you explain why the force from the cyclist would be cos? I thought that the force of gravity assisting the cyclist is parallel to the incline, that's why I used sin. I don't know how to edit the first post, but I found the correct solution to the second problem.

Homework Statement First Problem: A cyclist coasts down a 3 degree hill at a constant speed of 2.2 m/s. When the cyclist pumps hard, they can descend the hill at 12.6 m/s. Using the same power, what is the speed the cyclist can climb uphill? The cyclist and bicycle weigh 70 kg. Assume that...