D Question 15 There is a massless spring with a force constant of k connecting the two blocks. Assuming the surface is frictionless, find: The magnitude and direction of the force applied to m, by the spring. mass less spring 7 force constant & P m , cecle a m2 frictionless O F - m1*a, toward the right O m2*a, toward the left O F, toward the left O m2*a, toward the right