1. The problem statement, all variables and given/known data Figure 7-39 gives the acceleration of a 1.95 kg particle as it is moved from rest along an x axis by an applied force Fa, from x = 0 to x = 9 m. Fig. 7-39 : http://www.webassign.net/hrw/W0128-N.jpg How much work has the force done on the particle when the particle reaches the following points? (a) x = 4 m (b) x = 7 m (c) x = 9 m What is the particle's speed and direction of travel when it reaches each of the following points? (a) x = 4 m (b) x = 7 m (c) x = 9 m 2. Relevant equations F=ma W=integral (F dot dx) 3. The attempt at a solution I tried taking the area of the acceleration vs. x graph and timed it by m, which would give me the acceleration of the F vs. x graph, which should be equal to work, but it was incorrect. I did not know how to find work for the specific position.