Question

When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved?

They will move at the same velocity as whichever object was fastest initially.


They will move at the same velocity of whichever object was slowest initially.


They will move more quickly.


They will move more slowly.

Answer 1

Answer:

they will move slowly

Explanation:

Answer 2

Answer:

They will move more slowly.

Explanation:

When the two objects stick together, they can be treated like one larger mass. By increasing mass, and keeping momentum the same, velocity must decrease (a larger object moves slower if all other variables stay the same) by p = mv.