Question

Two identical prismatic bars pq and rs each weighing 75 n and welded together to form a tec and are suspended in a vertical plane .a shown in fig 3.10. calculate the value of theta thar the bar pq will make with vertical when a load of 100n is applied at s​

Answer 1

Explanation:

solution in pictures. this question is based on moment

Answer 2

Answer:

Value of theta that the bar PQ will make with vertical when a load of 100n is applied at  3/5s​

Explanation:

Question :---- we have to find if Ll four pumps were opened. how much fraction of time they will take to work large pipe alone ....

solution :------

it is given that ,

3 small pipes work = 2/3 of the rate of large pipe ..

so,

3S/L = 2/3

S/L = 2/9

S:L = 2:9 (efficiency ratio)

now let, total tank capacity = 18 litre ,

Larger pipe will take = 18/9 = 2 min

3small + 1 larger will take = 18/(2+3*9) = 18/15 = 6/5 min ..

required fraction = 6/5 * 1/2 = 3/5 (Ans)