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Heya !!!
here is your answer !!!
when the ball strike on smooth horizontal surface at 20 m / s
then ,
it's velocity is given by formula 2 V
therefore ,
the magnitude of changing velocity is
=> 2 * 20 m / s
=> 40 m / s
hence , option number D is correct !!
thanks !!
have a pleasant day !!!
☺☺
here is your answer !!!
when the ball strike on smooth horizontal surface at 20 m / s
then ,
it's velocity is given by formula 2 V
therefore ,
the magnitude of changing velocity is
=> 2 * 20 m / s
=> 40 m / s
hence , option number D is correct !!
thanks !!
have a pleasant day !!!
☺☺
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