help in matlab please!

Problem 1: Consider a block has a mass of 8 kg with a 50 N force applied horizontally and a 75 N force applied at a 50-degree angle from horizontal. The coefficient of friction on the block and a horizontal surface is 04. The block is initially at rest. Determine the distance that the block moved in 5 seconds. Problem 2: Evaluate In(4t) cos(t)-sin^2(t/3) at t-17 and t=13.2 Problem 3: Plot the expression from problem 2 for 0