1. The problem statement, all variables and given/known data: #1. You are walking on a perfectly round asteroidwith a diameter of 40km and a mass of 10 to the 16th kg. your mass is 60kg. how much will you weigh, in Newtons? #2 a 100 kg porshe is moving at a steady speed around a cicular track waith a 1000 m radius. The porshe's centripedal acceleration is 5 m/s squared. What is teh magnitude of its velocity? 2. Relevant equations 3. The attempt at a solution I tried a=v squared/r but it doesn't include the mass so i didn't think it's right and i've looked through all my notes and can't find a formula for the second one. For the first one i'm lost cause f=ma dont work. any help i would be grateful for, thanks.