2. The graph shows the x-velocity of a very slow industrial robot as a function of time. a. What is the x-acceleration at t = 5 s? b. What is the x-acceleration at t = 20 s? c. What is the x-acceleration at t = 27 s? That is (/) % 60 40 20 0 -20 -40 0 10 5 x-velocity vs. time 10 15 20 25 30 time (sec) d. During the first interval from 0 to 10 s, the acceleration is constant, and we know that x = x₂ + Vox At+ax(At)² while vx = Vox + axt. Here x, and vox are the x-position and x-velocity at the beginning of the constant acceleration interval and At is the time from the beginning of the constant acceleration interval. i. Write an expression for the x-position as a function of time t for the first interval, i.e., for 0 < t < 10 s. Your expression should only contain the variablet and the correct values (with units) of the constants xo. Vox, and a. Assume x = 0 at t = 0.

2. The graph shows the x-velocity of a very slow industrial robot as a function of time. a. What is the x-acceleration at t = 5 s? b. What is the x-acceleration at t = 20 s? c. What is the x-acceleration at t = 27 s? That is (/) % 60 40 20 0 -20 -40 0 10 5 x-velocity vs. time 10 15 20 25 30 time (sec) d. During the first interval from 0 to 10 s, the acceleration is constant, and we know that x = x₂ + Vox At+ax(At)² while vx = Vox + axt. Here x, and vox are the x-position and x-velocity at the beginning of the constant acceleration interval and At is the time from the beginning of the constant acceleration interval. i. Write an expression for the x-position as a function of time t for the first interval, i.e., for 0 < t < 10 s. Your expression should only contain the variablet and the correct values (with units) of the constants xo. Vox, and a. Assume x = 0 at t = 0.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 55PQ

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