Suppose you push a toy train with a force of 3 n east. the train has a mass of 0.5 kg. what is its acceleration?
a. 0.17 m/s2 east
b. 1.5 m/s2 east
c. 6 m/s2 east
d. 30 m/s2 east

nah.   i'm just sleepy.

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.