question: What is vertical ground reaction force ?
answer: s external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum
turker_answer: Vertical ground reaction force is external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum .
rule-based: Vertical ground reaction force is s external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum .