Instead of using his book to hold down fluttering papers, Sam looks for a paperweight. What type of problem-solving obstacle is this? O A confirmation bias
OB. mental set
OC. functional fixedness
OD.
incorrect assumption

c. newton's third law of motion

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

a is the best answer your welcome