Need assistance on number 38 54Chapter 2 Motion in One Dimensiondisplacement. (a) Draw a coordinate system for thissituation. (b) What analysis model is most appropri-ate for describing this situation? (c) From the analysismodel, what equation is most appropriate for findingthe acceleration of the speedboat? (d) Solve the equa-tion selected in part (c) symbolically for the boat'sacceleration in terms of u, v, and Ax. (e) Substitutenumerical values to obtain the acceleration numeri-cally. (f) Find the time interval mentioned above.38. A particle moves along the x axis. Its position is givenw by the equation x= 2 + 3t - 4t², with x in meters andtin seconds. Determine (a) its position when it changesdirection and (b) its velocity when it returns to theposition it had at t = 0.l39. A glider of length moves through a stationary pho-togate on an air track. A photogate (Fig. P2.39) isa device that measures the time interval Ata dur-ing which the glider blocks a beam of infrared lightpassing across the photogate. The ratio v₁ = e/At& isthe average velocity of the glider over this part of itsmotion. Suppose the glider moves with constant accel-eration. (a) Argue for or against the idea that Vaisequal to the instantaneous velocity of the glider whenit is halfway through the photogate in space. (b) Arguefor or against the idea that va is equal to the instanta-neous velocity of the glider when it is halfway throughthe photogate in time.theels c*42. At awithandmotrawh(b)tinarenas43. FiofofРlaeulitt44.M

Name: Need assistance on number 38 54Chapter 2 Motion in One Dimensiondispla
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Description: Need assistance on number 38 54Chapter 2 Motion in One Dimensiondisplacement. (a) Draw a coordinate system for thissituation. (b) What analysis model is most appropri-ate for describing this situation? (c) From the analysismodel, what equation is mos