After the civil war slavery came to an end in the south, and

"Equality of rights was given to slaves"

Slavery ended in the United States in the spring of 1865, when the Confederate armies surrendered. All slaves of the Confederation were freed by the Proclamation of Emancipation, which stipulated that the slaves of all the states that had split off from the Union would be free from that moment. The slaves of the border states and those of the parts of the South that were in the hands of the United States were released in December of that same year thanks to the Thirteenth Amendment. From this moment on, slaves were given equal rights, although they were not reflected at that precise moment if the foundations were laid for this to happen in the future.

c. mass = force / accellaration

step-by-step explanation: