rule set forth in Dickman v. Schaeffer (1960), 10 Wis. (2d) 610, 616, 103 N. W. (2d) 922, as follows:
“When several inferences may reasonably be drawn from credible evidence, one of which will support a claim of one of the parties and the other inferences will not, it is for the jury to determine the proper inference to be drawn from the conflicting evidence. Although we could sustain a contrary result if found by the jury, it is our duty not to set aside a verdict when it is approved by the trial court, as here, and when there is credible evidence to sustain it. Maccaux v. Princl (1958), 3 Wis. (2d) 44, 87 N. W. (2d) 772; Kanzenbach v. S. C. Johnson & Son, Inc. (1956), 273 Wis. 621, 79 N. W. (2d) 249.”
The trial court submitted the case to the jury upon an ultimate-fact verdict. As to the negligence, if any, of both drivers, approved instructions were given as to the definition of negligence, management and control, speed, dimming of headlights, and position on the highway. The court further instructed the jury, without distinction as to drivers, of the right to assume nonnegligent use of the highways and the standard emergency and cause instructions.
The defendant, in support of its position that there is no credible evidence to sustain a finding of causal negligence on the part of Rogowski, contends that the speed of Rogow-ski could not be causal. The plaintiff, the only surviving witness to the events before the collision, testified that the speed of Rogowski was 70 to 75 miles per hour. The violence of the collision is further evidence of speed.
■ Prior cases clearly set the rules as to the causal effect of speed.
We have recently held in Baker v. Herman Mut. Ins. Co. (1962), 17 Wis. (2d) 597, 602, 117 N. W. (2d) 725:
“This court has never held that excessive or unlawful speed is causal merely because it places the vehicle at a particular place at a particular time. Excessive speed is causal, how