9. A A cyclist travelling at 10 m/s applies her brakes and stops in 25 m. The graph shows the magnitude of the braking force versus the distance travelled. 160 F(N) 15 25 d(m) What is the total mass of bike and cyclist? A. 20 kg B. 40 kg C. 64 kg D. 80 kg 10. K The graph below shows the relationship between the force applied and the distance moved for a 3.5 kg object on a frictionless horizontal surface. 16.0 12.0 F(N) 8.0 4.0 2.0 4.0 6.0 8.0 d (m) If the object was initially at rest, what is its kinetic energy after travelling 8.0 m? A. 2.0J B. 32 J C. 64J D. 130 J