A ball of mass m strikes a wall that is perpendicular to its path at speed +v and rebounds in the opposite direction with a speed –v. The impulse imparted to the ball by the wall is
1) 2mv 2)mv 3)-mv 4)zero 5)-2mv
1 answer
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1) 2mv 2)mv 3)-mv 4)zero 5)-2mv
1 answer