Look like a 48 to me, but I agree with the idea of doing a test. If your camera has an “auto” option for the shutter speed it will fix it to half the frame rate speed, as mentioned by others.
For 24, 48. To shoot at 90, you’ll have a speed of a 180.
But, if the camera has cine options, it will not show a shutter speed, but a shutter angle that should be of 180 degrees and you don’t have to adjust.
I hope this helps.
https://vimeo.com/fernandomol