25%Part (c)The force acting on the block of massmmis a Hooke's Law restoring force, and hence, a Newton's Second Law equation for the spring-mass system may be written asma=kxma=kx

Substitute the time dependent expressions for position and acceleration into this equation, move all terms to the left hand side, and factor the resulting expression such that it has the formAFcos(t)=0AFcos(t)=0

Enter the form of the factorFFthat appears in your factored expression using the symbols in the palette.

FF=