Recent content by physicsguy10

Shameless bump :(

I expanded, with uN > f, that the finger force F must be at a minimum: F > (mg/2)(cosθ/u - sinθ) I would absolutely be indebted to anyone who would take the time to verify this.

Since 60sec/1min is a definition it doesn't follow the "sig fig" rules, they only apply for measurements. it's 123 sec.

Homework Statement With two fingers, you hold an cone motionless, upside down. The mass of the cone is m, and the static coefficient u. The angle of the tip, when viewed from the side, is 2θ. What is the minimum normal force required to hold the cone up (with each finger)? And, in terms of u...