M2 Questions

I have a few questions from a few M2 topics im struggling with...

1. What type of force(s) would you draw on a hinged rod. e.g.http://postimg.org/image/hvdrjosk7

2. How does thrust act on a rod e.g. http://postimg.org/image/j4rqcqfkh
3. Question 12 on http://postimg.org/image/6z53udsk1
4. Questions 5 and 6 on http://postimg.org/image/xm3o0uua9


Thats it for now

1.) I've drawn what it should look like. There has to be a force x acting right, otherwise the rod would be sliding to the left because of the tension in the string. There must also be a vertical reaction from the hinge, we don't really know what direction this is going in but I've modelled it going upwards.


2.) Thrust is just the 'push' from the rod. If there were no force from the rod the lamina would just fall.
3.) and 4.) I've looked at these two questions, but it'd be helpful to know what you've managed to do so far?

Posted from TSR Mobile

1) I posted this question before you helped me out with that hinge diagram yesterday
4) What ive come up with so far : http://postimg.org/image/ojoryh0hj