2. The graph shows forces acting on a 1kg object that was initially at rest. The time when the object has attained a velocity of 6m/s: A) 4s B) 5s C) 6s D) 7s 20 10.0 E) Not given Time ( 10'0 Force (N) 3. The data was obtained from a force sensor attached to an object 25 initially at rest. The forces are all along the same directional axis. The final speed is measured to be 10m/s. The mass is most 20 nearly IS A) 2kg B) 4kg 10 C) 6kg D) 8kg S E) 10kg 4 Time (s) 4. Multi-Correct (choose 2) An airbag is deployed in a car for the purpose of: A) Reducing impulse by making the change more gradual B) reducing force by providing more time C) Reducing change of mechanical energy by changing the momentum slower D) Reducing force by providing an applied force over a longer stopping distance