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A body of mass 10kg is at rest.Later on if it is moving with a velocity of 10m/s in a time of 2 seconds , what should be the force to be applied ?
We have,
           m=10kg
             u=om/s
            v=10m/s
               t=2s
             F=?
           Acceleration,a=(v-u)/t
                                      =10/2
                                       =5m/s2
                  F=ma
                        =50N


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