Theory of machines homework problem

[dorteam]

Homework Statement

The stroke of an internal combustion engine is 180 mm. The connecting rod is 3 times the crank length and has a mass of 40 kg. The mass of the reciprocating part is 12 kg. The centre of mass of connecting rod is 110 mm from the crank pin centre and the radius of gyration about an axis through the centre of mass is 148 mm. the engine runs at 320 rpm. Find the magnitude and the direction of the inertia force and the corresponding torque on the crank shaft when the angle turned by the crank is 2400 from the inner dead centre.

Relevant Equations

They're in the given question.

I couldn't do it

 

[Lnewqban]

... when the angle turned by the crank is 2400 from the inner dead centre.

Welcome!
I believe that data is not correct.
Perhaps 240 degrees?
Either top or bottom dead center.

Please, see:
https://en.wikipedia.org/wiki/Dead_centre_(engineering)

 

[haruspex]

Perhaps 240 degrees?

... with the typography being 240°.