An object of mass 100 kg is accelerated uniformly

Asked by admin @ 11/08/2021 in Physics viewed by 291 People

AN OBJECT OF 100KG IS ACCELERATED UNIFORMLY FROM A VELOCITY OF 5M/S TO 8M/S IN 6SECOND .CALCULATE THE INITIAL AND FINAL MOMENTUM OF THE OBJECT.ALSO FIND THE MAGNITUDE OF FORCE ASSERTED ON THE OBJECT???

Answered by admin @ 11/08/2021

Initial momentum=mass*initial velocity=(100*5)=500kg m/s
Final momentum=mass*final velocity=(100*8)=800 kg m/s
Force=Rate of change of momentum
Force=m(v-u)/t
=100(8-5)/6
=100*3/6=50 N

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