State and apply the Law of Conservation of Momentum. (CLO1)(CLO2)(CLO3)CLO5) App

Question

State and apply the Law of Conservation of Momentum. (CLO1)(CLO2)(CLO3)CLO5) Apply the definition of momentum and mpulse. (CLO2)CLO3) Calculate momentum and impulse (CLO2)(CLO5) Discuss the application of the momentum-impulse theorem during a colision (CLO1)(CLO2)(CLO3) Develop a well thought out and correct response to various practice questions (CLO2)(CLO3)(CLO5)(Goal 4) 1. What is the momentum of a 2- ton elephant moving at 15 mi/hr? Use SI units! 2. Explain why an air bag is effective most of the times in preventing injuries during a collision. 3. State the Law of Conservation of Momentum? Give an example of a situation where momentum is conserved. 4. Explain how a small object can have just as much momentum as much bigger object. 5. Use the momentum impulse theorem to explian why head on collisions are so deadly

Explanation / Answer

A)mass=2*907.18474kg

Velocity=15*0.44707m/s

P=m*v=12167.25245kg*m/s

B)The airbag inflate rapidly then quickly deflate during a collision or impact with another object or a sudden deceleration. It provide energy absorbing surface between vehicle occupant and steering wheel during collision. So, it is effective most of the time to prevent collision.

C) law of conservation of momentum states that momentum of object before and after collision is same I.e. it is conserved.

Example is firing of rifle

D) momentum depend on mass and velocity of object and not on the size of object. So, bigger object and smaller object have same momentum if mass of both object is equal.

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