A 5 kg book falls from a shelf. If it lands at a speed of 5.7 m/s, from what height did it fall?
1 answer:
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Answer:
A. The momentum of car A(5kg) is EQUAL to that of car B(0.5)
Explanation:
The moment, or impulse formula of the same forces acting on both car within 1 second is
In our case the forces are the same, the time duration of force acting on the cars are the same. Therefore, their momentum right after the force must also be the same.