% exam 2 % problem 6 clear all; clc; close all syms t real W = 10; % lb v0 = 10; %ft/s b = 2.5; % lb/s tf = 3; % s g = 32.2; %ft/s2 F = b*t; m = W/g; a = F/m; v = int(a, t)+v0 vf = subs(v, t, tf) % v = 46.2250
v = 161/40*t^2+10 vf = 46.225000000000001