Asked by Johnathon
                A tennis ball of mass m = 0.065 kg and speed v = 35 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45° (see figure). What is the impulse given to the wall?
Magnitude
            
        Magnitude
Answers
                    Answered by
            bobpursley
            
    well, the impulse was given perpendicular to the wall. THe compoent of velocity perpendicular is 35*.707, so change velocity is twice that.
impulse= 2*35*.707 kg m/s
    
impulse= 2*35*.707 kg m/s
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