โš›๏ธ Physics Quiz 6: Momentum, Impulse, and Collisions

โš›๏ธ Physics ยท Quiz 006

Track how momentum changes through impulse and use conservation laws to analyze elastic and inelastic collisions.

Learning goalDevelop momentum as a vector conservation framework and use impulse and collision analysis to complement energy methods.

  • 5 questions
  • Foundation
  • Explanations after finishing
Answered 0/5
FoundationWhich expression defines linear momentum?
Need a small nudge?

Linear momentum combines an object's mass with its velocity.

UnderstandingWhat is the impulse delivered to an object equal to?
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Think about the before-and-after momentum of the object.

ApplicationA 0.20 kg ball initially moves at +10 m/s. After being struck, it moves at -5.0 m/s. What is its change in momentum?
Need a small nudge?

Use final momentum minus initial momentum and keep the velocity signs.

InterpretationA 2.0 kg cart moving at 3.0 m/s collides with a 1.0 kg cart at rest. They stick together. Neglect external horizontal forces. What is their common velocity after the collision?
Need a small nudge?

Because the carts stick, first conserve total momentum and use their combined mass after the collision.

ConnectionTwo equal-mass carts collide in an isolated one-dimensional system. Before the collision, cart A moves at 4.0 m/s and cart B is at rest. Afterward, A is at rest and B moves at 4.0 m/s. How should this collision be classified?
Need a small nudge?

Check both total momentum and total kinetic energy before and after the collision.

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