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Please solve the problem given in the pic. ...................................................

Please solve the problem given in the pic. ...................................................

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Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
let h be the height of wedges.
Now for first wedge momentum conservation and from energy conswrvation,
0 + 0  =  mv1  -  Mv2
we get v2 = mv1/M m/s.
and
mgh = 0.5Mv2^2 + 0.5mv1^2
solving both we get 
v1^2 = 2Mgh/(M+m) …..................(1)
 
For wedge (2)
0.5mv1^2 = 0.5Mv0^2 + mgx
and 
mv1 = Mv0
solving we get,
x = v1^2(M – m)/2gM
substituing from eq. (1)
 we get
 x = [(M-m)/(M+m)]h meter.

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