1. A 155-kg astronaut (this mass includes space suit) pushes to the left on a spacecraft with a force Fin "gravity-free" space.The spacecraft has a total mass of 3,199 kg.During the push, the astronaut accelerates to the right with an acceleration of 1 m/s². What is the magnitude of the acceleration of the spacecraft? Please round your answer to the three decimal places.

2. When the net force that acts on a truck is 6,034 N, the puck accelerates at a rate of 11 m/s². What is the mass of the truck? Please round your answer to the nearest whole number (integer).