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CBSE Class 11-science Answered

state true and false with reasons:1.)a man rowing a boat upstream is at rest w.r.t the shore.work done by him is 0. 2.)a light and a heavy particle having equal momentum have equal kineic energy.
Asked by Deepshikha deepsi | 07 Mar, 2013, 06:44: AM
Expert Answer
1.   Here work done by him is frame dependent.
      with respect to shore it is zero but with respect to the river water it is a finite number.
 
2.   False KE and momentum are related as: p2/2m = E 
 
     p = mementum
     E = KE
Answered by | 09 Mar, 2013, 08:18: AM

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