I suspect you are already aware that there is no such mathematical formula to work this out, but as we are in science here, it must make some difference however small.
There is a formula to measure surface tension which I don't fully understand, but I do believe that the difference in surface tension between normal warm water and normal cold water is more than between soapy and normal water of the same temperature.
If this is a trick question...... It makes no difference if you dive into a washing machine tub from 10 metres high whether there is soapy water in the tub or just plain water, you're still gonna get splattered.