Daytime temperatures on Mercury are extremely hot because: it is close to the sun
it has long days
it has volcanoes
one side faces the sun
it gives off internal heat

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

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.