Final answer:
The scenario described pertains to a roller derby game under JRDA rules. Depending on the legality of the hard hit, the Black pivot may or may not receive a penalty. The legality would be based on the execution of the hit and referee judgment.
Step-by-step explanation:
The situation described involves a contact sport, specifically roller derby, which is under the umbrella of the Junior Roller Derby Association (JRDA). In JRDA skill level 2, certain types of contact are allowed, but they must be executed safely and within the rules. The initial contact where the Black pivot lightly touches the Blue jammer's shoulder is commonly known as a check, which is permissible. However, without further details on whether the subsequent hard hit was executed legally (within the play boundaries, using the legal blocking zones, and not from behind), it cannot be determined if this action results in a penalty. Should such a hit be considered illegal, the Black pivot may receive a penalty, depending on the exact nature and severity of the contact as observed by the referees.