Two Identical 5000-Kg Bulldozers Roll Toward Each Other on a Level

question 74

Multiple Choice

Two identical 5000-kg bulldozers roll toward each other on a level road without friction (one at 1 m/s,the other at 2 m/s) Just before they collide,one has a kinetic energy of 2500 J and the other 10,000 J.At this instant their total kinetic energy is

• A)1250 J.
• B)2500 J.
• C)7500 J.
• D)10,000 J.
• E)12,500 J.

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