For a man who wants to cross the river, with the shortest path AB, find the anglet theta (see figure)

For a man who wants to cross the river, with the shortest path AB, fin

1.	For a man who wants to cross the river, with the shortest path AB, find the anglet theta (see figure)
Answer» `sin^(-1)(3/4)` `sin^(-1)(4/3)` `30^(@)` Given situation is not possible Solution :(d) For the man to CROSS the RIVER frm the shortest path, `V_(m) sin THETA=v_(r)` `sin theta=(v_(r))/(v_(m))` `sin theta=4/3` `theta =sin^(-1)(/3)` But it is not possible, because `sin theta` could not be GREATER than `t`. Hence the man could not cross the river from the shortest path `AB`.