A 25 g ball whose speed is 12.2 cm/s strikes a wall and bounces off at the same speed but opposite direction. The change in the object’s momentum is equal to _____. ( take note of the direction of the ball before and after striking the wall) a. 3.05 x10^-3 kg m/s b. 2.05 x 10^-3 kg m/s c. 6.1 x10^-3 kg m/s d. Zero

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