Some calculations of Physics problems by conventional methods - alongside by  the New Concept Method.

 

a      If a body is moving with a uniform velocity of 40 m/s, how far will it go in     two minutes? [Problem 1 (Pg-31) I.C.S.E.]

 

                                                                                               Solution

Conventional method                                           New Concept Method

v = 40m/s                                                               v = 40 Chm/P

t = 2minutes = 2 x 60 seconds                                Dial Distance = 2 R = 2 x 60 P

   = 120 seconds                                                                           = 120 P

S = v x t                                                                 S = v x Dial Distance         

     = 40 x 120 = 4800 meters                                      = 40 x 120 = 4800 Ch meters  

    = 4 km 800 meters                                                   = 4 Ch Km 800 Ch meters    

 

 

                                                                                            Acceleration

 

Conventional method                                           New Concept Method

Acceleration = Change in Velocity                          Change in Distance/Dial (DF)

                              Time Taken                              Dial Distance (DF)

                           Distance                                         Distance

                     =    Time                                           = Dial (DF)

                           Time                                                Dial (DF)

                     =   Distance                                                Distance        

                          Time x time                                         Dial (DF) x Dial (DF)

                     =     Distance                                       =   Distance   

                             Time2                                               (Dial DF) 2            

                                                                             

                     = Distance/Time2                               = Distance/ (Dial DF) 2

 

b.      A body starts moving from rest with an acceleration of 5m/s2. How far will it go in 1 minute? [Problem 5 (Pg-32) I.C.S.E.]

 

                                                                        Solution

Conventional method                                     New Concept Method

u = 0, a = 5 m/s2                                                              u = 0, a = 5Chm/P2

t = 1 minute = 60 seconds                                 Dial DF= 1R = 60 P

S = ut + at2=  0 x 60 + x 5 x 60 x 60            = 0x60P + x 5 x 60P x 60P

   = 0 + 9000 m                                                      = 0 + 9000 Ch meters 

   =9km                                                                  = 9ChotuKm                                                                                              

 


 

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Cover Page Comments Title page I II III IV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 INDEX i ii iii iv About the Author