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Thread: wedge and block

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    wedge and block

    wedge and block-win_20170517_21_02_23_pro.jpgClick image for larger version. 

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    im stuck on question 2 part ii
    using the formula f=ma and resolving the mg(weight of block) to its vertical component i got the equation mgcosa-R=m(Bsina) where b is resolved the acceleration of block caused by the acceleration of the wedge. i dont take into account its acceleration down the block.
    looking at forces on the wedge and again using F=ma i get the equation Rsina=4(mB) subbing these into each other(isolate B) i get 4mgcosa-4R=R*sina^2
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    Re: wedge and block

    see attached diagram ...
    Attached Thumbnails Attached Thumbnails wedge and block-wedge_n.jpg  
    Thanks from markosheehan
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