- #1

simphys

- 324

- 46

- Homework Statement
- The smooth surface of the vertical cam is defined in part by the curve r = (a cosθ + b). The forked rod is rotating with an angular acceleration θ”, and at angle θ the angular velocity is θ’. Determine the force the cam and the rod exert on the roller of mass M at this instant. The attached spring has a stiffness k and an unstretched length l. Given: k = 100 N/m , θ = 45 deg l = 0.1 m , θ’ = 6 rad/s, M = 2 kg , θ” = { 2 rad/s

- Relevant Equations
- c ylindrical

so this is what the FBD is.... but to be fair, to me this one looks as if the normal force in the direction of the radial line, yet it isn't????

here in the solution, it's not along the radial line, whys that???