The instantaneous configuration of a slider crank mechanism has a crank GH 10cm long, the connecting rod HP is 50cm. The crank makes an angle of 60 degree with the inner dead centre position and is rotating at 110 rev/min. Determine the velocity of the piston P and the angular velocity of the link HP.

Here is the diagram

my guess would be to use this formula [ -rw(cos(60)+((sin2(60)/(2xsqrt(nē-sinē(6 ‡ ]

where n = L/R

but i get a negative answer which seems a bit low.

can someone give me steps on how to complete this question correctly? because i aim to revise from it for my exam thank you