A particle of mass m, initially at rest, is acted
upon by a variable force F for a brief interval of
time T. It begins to move with a velocity 'u' after
the force stops acting. F is shown in the graph as
a function of time. The curve is a semicircle,
then

• Change in momentun=Area of semi circle
  |mv-mu| =πr^2/2
  =π.r.r/2
  
  =πF•T/2/2
  mu=πF•T/4
  u=πF•T/4m
• 6 years agoHelpfull: Yes(0) No(0)