Final answer:
The slow acceptance of rock and roll in the 1950s can be attributed to racial barriers, social attitudes, resistance from the music industry, and technological limitations.
Step-by-step explanation:
Racial barriers and social attitudes played a significant role in the slow acceptance of rock and roll in the 1950s. The genre originated from African-American and Southern cultural influences, which faced resistance and prejudice from some segments of society. Additionally, the music industry was resistant to innovation and favored traditional genres over the novel sound of rock and roll. Technological limitations of the era also hindered the widespread distribution and exposure of rock and roll music.