1. The problem statement, all variables and given/known data A man moves two passenger cars by clamping his teeth don a bit that was attached to the cars with a rope and then leaning backward while pressing his teeth against the railway ties. The car together weighed 700 kN. Assume that he pulled with a constant force which was 2.5 times his body weight, at an upward angle of 30 degrees from the horizontal. His mass was 80 kg, and he moved the cars 1.0m. Neglecting any retarding force from the wheel rotation, find the speed of the cars at the end of the pull. d = 1.0m theta = 30 degrees force total = 2.5 x man's body weight cars' weight = 700kN man's mass = 80kg 2. Relevant equations Just need help to get started. Thanks in advance. 3. The attempt at a solution Don't understand how to find force only given distance and no time.