Ok so i need to work out the force acting on the wedge.
Here's a diagram which we had to draw (Im not 100% sure if this is right)
http://img827.imageshack.us/img827/8526/helpvm.png
[Btw both the wedge and block have the same acceleration]
Im gonna use M=m2 m=m1
Working:
Consider the wedge:
resolve(down) R' = Mg + R cosx
resolve(right) Ma = F-Rsinx
Consider block:
Resolve (diagonal down sw): R=mgcosx
Resolve(Diagonal down se): ma = mgsinx
Using a = gsinx from the block and then eliminating a
I get F=gsinx(M+mcosx)
But this seems very easy for the marks given.
Have i gone wrong? Is there another way to check?
Here's a diagram which we had to draw (Im not 100% sure if this is right)
http://img827.imageshack.us/img827/8526/helpvm.png
[Btw both the wedge and block have the same acceleration]
Im gonna use M=m2 m=m1
Working:
Consider the wedge:
resolve(down) R' = Mg + R cosx
resolve(right) Ma = F-Rsinx
Consider block:
Resolve (diagonal down sw): R=mgcosx
Resolve(Diagonal down se): ma = mgsinx
Using a = gsinx from the block and then eliminating a
I get F=gsinx(M+mcosx)
But this seems very easy for the marks given.
Have i gone wrong? Is there another way to check?