Print Calculator -d Periodic Table Question 8 of 19 A hockey puck sliding on a f

Question

Print Calculator -d Periodic Table Question 8 of 19 A hockey puck sliding on a frictionles surface strikes a box at rest. After the collision, the two objects stick together and move af some final speed. Which of the following describes the change in momentum and energy of the puck during the collision? Map O The puck conserves its original momentum and mechanical energy. O The puck loses some momentum in the collision, but conserves its mechanical energy O The puck loses some, but not all, of its original momentum and mechanical energy O The puck conserves its original momentum, but loses all of its mechanical energy O The puck conserves its original momentum, but loses some, but not all,of its mechanical One cannot determine if the momentum or energy of the puck is conserved without knowing the final velocities and masses of the two objects. Which of the following describe the change in momentum and energy of the combined puck and box during the collision? O The system loses some, but not all, of its momentum and mechanical energy One cannot determine if momentum or energy of the system is conserved without knowing the final velocities and masses ofthetwo objects. O The system conserves its original momentum and mechanical energy O The system loses some momentum in the collision, but conserves its mechanical en o The system onserves its original momentum, but loses some, but not all of ts mechanical O The system conserves its original momentum, but loses all of its mechanical energy. energy Next Exit O Previous 0 Check Answer Hint

Explanation / Answer

The given collision is inelastic in nature where the Momentum of the system is conserved but the kinetic energy is not conserved. Therefore, the answer to the 2nd question is the 2nd last option.

The puck is traveling with a final velocity which is lesser than its initial velocity since the box has a non-zero mass.

So, the kinetic energy of the puck is not conserved and since the final velocity of the puck is smaller than the initial velocity of the puck therefore some momentum is also lost. Hence the answer to the 1st question is 3rd option from the top.

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