Original sentence: A study from the University of British Columbia concludesthat cow tipping by a single person is impossible
Edited sentence: According to their calculations, a cow of 1.45 metres in height pushed at an angle of 23.4 degrees relative to the ground would require 2,910 Newtons (approximately 614 pounds) of force, equivalent to 4.43 people (and even this calculation assumes that the cow does not react and re-orient its footing).Another complicating factor, according to Lillie, is that cows are easily disturbed, meaning that successfully sneaking up on a cow would be very difficult, especially if multiple assailants are involved.In addition, Lillie noted that, contrary to popular belief, cows do not sleep on their feet.Margo Lillie, a doctor of zoology at the University of British Columbia, and student Tracy Boechler, have concluded that cow tipping by a single person is impossible.Thus, while it is possible for a number of people to push over a cow, these calculations clearly refute the notion that a single person can casually push over a cow