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CBSE Class 9 Answered

URGENT
Asked by | 20 Jul, 2009, 09:36: AM
answered-by-expert Expert Answer

Intial momentum = 50 x 100 / 1000

                                 = 5 kg m /s

Final momentum = 0

v2 - u2  = 2 as

a = - 250000 m /s2 [ negative sign indicates retardation ]

Now, F = ma

              = 50 x ( - 250000) / 1000

              = - 12500 N

  

 

 

 

 

Answered by | 20 Jul, 2009, 12:59: PM

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