Question

34. It is impossible for a reaction to take place if
(1) AH is +ve and AS is +ve
(2) AH is -ve and AS is +ve
(3) AH is +ve and AS is -ve
(4) AH is -ve and AS is -ve​

Answer 1

Answer:

The answer is a option B

Answer 2

Explanation:

with speed u strikes a rod AB of mass M and

length L at the end B and gets embedded into it.

If initially the rod is vertical and hinged at end A,

then angular speed of the system just after

collision will be