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1. ### Finding normal force from kinetic and potential energies

v1 is speed at A, Y is the height at B to the level of A. can you tell me where I made a mistake on my signs?
2. ### Finding normal force from kinetic and potential energies

A is original heigth, B is the bottom of the circle, below A. V1= Velocity at A picture was attached.
3. ### Finding normal force from kinetic and potential energies

A 69.2-kg skier encounters a dip in the snow's surface that has a circular cross section with radius of curvature of r = 13.2 m. If the skier's speed at point A in the figure below is 8.13 m/s, what is the normal force exerted by the snow on the skier at point B...
4. ### Vector and scalar magnitude problem

yea i used the negative. i actually tried both ways and was told both were incorrect. only have one chance left.
5. ### Vector and scalar magnitude problem

doesnt give me anymore information then what is given. and i tried 59.1/1.9 to give me the answer but it said that was incorrect.
6. ### Vector and scalar magnitude problem

Homework Statement The vector -1.90A has a magnitude of 59.1 m and points in the positive x direction. Calculate the x component of the vector A. Calculate the magnitude of the vector A. Homework Equations 3. The Attempt at a Solution I understand vectors but having a...