1. The problem statement, all variables and given/known data Consider the extreme case that the comet is released from rest at a distance R_max from the sun. In this case L is actually zero. Use the technique described in connection with 4.58 to find how long the comet takes to reach the sun. The radius of the sun for now is zero. 2. Relevant equations Equation 4.58 is T=∫dr/(E-U(r))^(1/2) E should be -GM_sM_c/R_max and U(r) should be -GM_sM_c/r 3. The attempt at a solution So I intergrate this and my bound are 0 to R_max. I just want to know if I'm on the right track becasue the integral is very messy. Thanks.