Recent content by Kai-chan

Formulas you can use: K=½mv² W=Fdcos? ?K=½mv?²-½mv?² ?K=W P=W/t=Fv Weight=mg g=9.8m/s² 1)Calculate the kinetic energy of a bicyclist riding at 20 m/s. the mass of the cyclist and his bicycle is 90 kg. 2)Two students exert a horizontal force (? = 0?) of 825 N in pushing a car 35 m. Calculate...