If a mack truck and honda civic have a headon collision, upon which vehicle is the impact force greater and which vehicle experiences the greater acceleration? 1. the forces are the same; the truck experiences the greater acceleration. 2. the force on the truck is greater; the accelerations are the same. 3. all are wrong. 4. the forces are the same; the civic experiences the greater acceleration. 5. the forces are the same; the accelerations are same.