3Is the answer 120N???????????
In the system shown in figure all surfaces are smooth. Rod is moved by ext. agent with acceleration 9m/s2 downward vertically. Force exerted by the wedge on the rod is __________ .
Please show the working....
-
UP 0 DOWN 0 0 6
6 Answers
1Use constraint equation.
a=a'tan 37
a' is the acceleration of the wedge
1to all who viewed it.....apply N sin37° = 120 u'll get the answer.
11
Here x is the horizontal displacement of wedge and y is the vertical displacement of the rod.
From the figure tAN A= Y/X
i.e is Y = x tan A
a = Ax tan A ...............where Ax is the horizontal acc of the wedge and Ay is the bvertical acc of the rod.
Now frm the wedge,
Nsin A = M A x
but Ax =a / tan A
Therefore, N sin A = M a / tan A
On putting the values we get N = 200