Please explain or provide reasoning and response to each prompt of the question below. Please use physics ideas, laws, or equations/formulas to explain to me. Please no reposts.

Angled leg press. You may have seen this machine at the gym where you have to push weights up an incline with your legs. Suppose the machine is angled at 30 above horizontal. The weight is listed as 1000 N, but you notice it's very tough. The coefficient of kinetic friction between the steel weights and the steel track it moves on is 0.6. (a) Draw a force diagram for the weights as you are pushing it up. (b) What is the minimum force you need to apply to move the weights? (c) The coefficient of friction depends on the two materials in contact. You can make your lift easier by cleaning the track and coating it with a little oil. The coefficient for kinetic friction between steel and steel with a little castor oil is 0.08. What is the minimum force to move the weights now