Two Equal Masses Travel in Opposite Directions with Equal Speed

question 81

Multiple Choice

Two equal masses travel in opposite directions with equal speed.If they collide in a perfectly elastic collision,then,just after the collision,their velocities will be

• A)zero.
• B)equal to their original velocities.
• C)equal in magnitude but opposite in direction to their original velocities.
• D)less in magnitude and in the same direction as their original velocities.
• E)less in magnitude and opposite in direction to their original velocities.

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