Question

Worksheet. All questions please.

Answer 1

just as a means of clarification. this tends to come across as tho you are wanting a free answering service as opposed to a study type session. Not that that is the case mind you, it just has that vibe about it.

Answer 2

the hanging cement one reminds me of one we did in calc3 class at the begining of the year; and I was the only one that attempted it :)

Answer 3

i used a cramer rule matrix thing in my solution :)

Answer 4

the tension in T3, the rope holding up the bag is just the weight of the bag itself

T1 and T2 add up to T3 so that all forces cancel out and the system rests in a state of equilibrium