1. You come home to find a delivered package with a mass of 100 kg blocking the door. If you push it with a force of 100N, what will its acceleration be if no friction is involved? 2. You're gliding across a frictionless lake in a sailboat. If your mass is 70kg and the boat's mass is 200kg, with what force does the wind need to blow to give you an acceleration of 0.30m/s2?
3. You have contorl of a space station, which has a mass of 400,000kg. To give it an acceleration of 2.0m/s2, what force do you need to apply with the rockets?
4. You find a stone in the forest and give it a push of 50N. It accelerates at 2.0 m/s2. What is its mass?