Question

9702 s2013 qp11 q16

Answer 1

The answer should be C

Answer 2

here u can just look at length of the arrow
but don't think that u can always do that

Answer 3

One thing we have to keep in mind that weight of the rod is distributed with the hinge (Force H) and the force T but which one is greater is hard to tell, its most probably due to the length of the vector as @Somy said

Answer 4

the thing is that we do know that weight W is distributed throughout trapdoor so that means to maintaining the trapdoor in that horizontal position, H is taking some of its weight to kinda help it out/ support it to stay in horizontal position. So now we do know that W shares some of its weight with H and H already has some force also, thus its own force+some of W force =H
so that means W will be less than H
then if u look at it as a triangle, you'll see that the tension T is in hypotenuse position, so according to Pythagoras theorem we do know that hypotenuse is bigger then adjacent or opposite, the order will be W->H->T

Answer 5

i think so, since i don't really know the real reason, so do cross check it better