3. (Kinetic Energy and Work) Figure gives the acceleration of a 2.00 kg particle as an applied force Fa moves it from rest along an r-axis from 9.0 m. The scale of the figure's vertical axis is set by 0 to r %3D as = 6.0 m/s?. How much work has the force done on the particle when the particle reaches i x= 4.0 m, x (m) ii x= 7.0 m, 2 4 iii What is the particle's speed and direction of travel when it reaches r= 4.0 m. Answer: i) 42 J ii) 30 J iii) 6.5 m/s + x direction (m/s2)