Would the abrasive paper manufacturing process work if both the paper and the particles were
positively charged?

b

explanation:

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

it breaks and dirupture other materials and other sencews from the bottom

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.