1. The problem statement, all variables and given/known data The mass of the Earth is 5.972 x 10^24 kg and its orbital radius is an average of 1.496 x 10^11 m. Calculate its linear momentum. 2. Relevant equations P=mv 3. The attempt at a solution I am not sure how to start? Given: mass= 5.972*10^24 kg Radius(to travel around sun): 1.496*10^11 m To find: Tangential velocity and then use the p=mv formula??