A 64-kg boy and a 42-kg girl use an elastic rope while engaged in a tug-of-war on an icy frictionless surface. If the acceleration of the girl toward the boy is 3.5 m/s2, determine the magnitude of the acceleration of the boy toward the girl.

Answer 1

F=F
ma=ma
64 * a = 42 * 3.5
a= 147/64 = 2.29