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CBSE Class 9 Answered

ABOUT THEIR COMMON VELOCITY
Asked by | 26 Aug, 2012, 11:04: AM
Expert Answer
we have to use the principal of conservation of momentum:
let the common velocity be v
 
(500+1500)v=500(4)+1500(2)
v=2.5m/s
Answered by | 26 Aug, 2012, 02:34: PM
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