Two Identical Carts Travel at 1 M/s on a Common

question 94

Multiple Choice

Two identical carts travel at 1 m/s on a common surface.They collide head-on and are reported to rebound, each with a speed of 2 m/s.Then:

• A)momentum was not conserved, therefore the report must be false
• B)if some other form of energy were changed to kinetic during the collision, the report could be true
• C)if the collision were elastic, the report could be true
• D)if the surface were inclined, the report could be true
• E)kinetic energy increased, therefore the report must be false

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