A 71.2-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then drops through a height of 1.64 m, and ends with a speed of 8.51 m/s. How much nonconservative work (in kJ) was done on the boy

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle