confirm my answers on Oscillating Springs?? Can anyone confirm or adjust my answers for problems 12 and 14? Also can someone help me start on problem 13.. Thanks guys I really appreciate the help 1. The problem statement, all variables and given/known data 012 Find the speed of the block when it is 2.5 cm from the equilibrium position. Answer in units of m/s. 013 Find its acceleration at 2.5 cm from the equilibrium position. Answer in units of m/s2. 014 Find the time it takes the block to move from x = 0 to x = 2.5 cm. Answer in units of s. 2. Relevant equations M= 0.7kg k= 14.7 N/m A= 5cm w= 4.58 rads/s T= 1.37s 3. The attempt at a solution #14: x(t) = 5cm Cos(4.58rads/s*(t)) t= (1/4.58 rads/s) cos^-1 (2.5cm/5cm) = 13.09s?? do I convert it to meters?? #12: E=1/2mv^2 + 1/2kx^2 = 1/2ka^2 1/2(.7)v^2 + 1/2(14.7)(.025m)^2 = 1/2(14.7)(.05m)^2 .35v^2=.0137 v=0.1984m/s I changed the cm to m, I should have done this right??