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by BlastRoom
Apply conservation of momentum to a closed system in one dimension.
#physics
25 questions
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Use the before-and-after figure for the two-cart system on a frictionless track. Take motion to the right as positive. What is the velocity of the joined carts after they lock together?
The figure shows the system of two carts colliding head-on on a frictionless track. Take right as positive. What is the final velocity of the joined carts?
In the figure, two carts move the same direction before the rear cart catches the front cart. For the two-cart system, take right as positive. What is their velocity after locking?
The figure gives a one-dimensional collision for the two-cart system. Take right as positive. After the collision, what is cart B's velocity?
The figure shows two carts on a frictionless track, with the two carts as the system. Take right as positive. What is cart B's final velocity?
Use the figure for the two-cart system on a nearly frictionless track. Take right as positive. After the collision, what is cart A's velocity?
The figure shows two carts moving toward each other and locking together. For the two-cart system, take right as positive. What is the joined velocity?
In the figure, the rear cart overtakes the front cart on a frictionless track. Take right as positive for the two-cart system. What is cart B's final velocity?
Use the figure for the two-cart system. Take right as positive. The carts lock together after impact. What is the velocity of the joined carts?
The figure shows a one-dimensional collision for the two-cart system. Take right as positive. After the collision, what is cart A's velocity?
A 1.2 kg cart moving east at 5.0 m/s hits a 2.8 kg cart at rest, and they lock together. Take east as positive for the two-cart system. What is their final velocity?
A 1.5 kg cart moving east at 4.0 m/s collides with a 2.5 kg cart moving west at 2.0 m/s. Afterward, the 1.5 kg cart moves west at 0.50 m/s. Take east as positive. What is the 2.5 kg cart's final velocity?
A 0.60 kg cart moving right at 8.0 m/s overtakes a 1.4 kg cart moving right at 2.0 m/s. After the collision, the 0.60 kg cart moves right at 1.0 m/s. Take right as positive. What is the 1.4 kg cart's final velocity?
A 2.0 kg cart moving east at 3.0 m/s collides head-on with a 5.0 kg cart moving west at 1.0 m/s, and they lock together. Take east as positive. What is their final velocity?
A 4.0 kg cart moving right at 2.5 m/s hits a 1.0 kg cart at rest. After the collision, the 4.0 kg cart moves right at 1.5 m/s. Take right as positive. What is the 1.0 kg cart's final velocity?
A 3.0 kg cart moving right at 4.0 m/s catches a 1.0 kg cart moving right at 2.0 m/s, and they lock together. Take right as positive. What is their final velocity?
A 2.0 kg cart moving right at 6.0 m/s collides with a 3.0 kg cart moving left at 2.0 m/s. Afterward, the 2.0 kg cart moves left at 1.0 m/s. Take right as positive. What is the 3.0 kg cart's final velocity?
A 2.0 kg cart moving west at 3.0 m/s hits a 2.0 kg cart at rest, and they lock together. Take east as positive. What is the final velocity of the two-cart system?
Two students analyze a collision between two pucks on nearly frictionless ice. Which choice lets the total momentum before and after the collision be equal, and why?
Two carts collide on a rough track, and the system is defined as only the two carts. What does kinetic friction from the track do to the system momentum during the collision interval?
Two carts collide on a level, nearly frictionless track. Gravity and the normal force act on each cart. Why can students still analyze horizontal momentum for the two-cart system?
A ball rolls into a fixed wall and rebounds. If the system is only the ball, why is the ball's momentum after impact different from before impact?
A student says a two-cart collision cannot follow the momentum rule if one cart has a much larger mass. Which response best fixes the error?
A truck and a small car collide and crumple badly. A student says the momentum rule fails because energy went into deformation, sound, and thermal energy. What is wrong with that reasoning?
Which condition is required for the total momentum of a chosen system to be constant during a short one-dimensional collision?
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20 questions
