An object starts from rest and accelerates at a rate of 3.0 m/s/s for 10 seconds. What is the displacement of the object? 30 m 0.3 m 150 m 300 m
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An object starts from rest and accelerates at a rate of 3.0 m/s/s for 10 seconds. What is the displacement of the object?
30 m
0.3 m
150 m
300 m
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- 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. That is c. What is the x-acceleration at t = 27 s? Vx (cm/s) 60 40 20 0 -20 -40 0 x-velocity vs. time 5 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 = x + VoxAt + ax(At)² while vx = Vox + ax^t. 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.an object has a velocity of (5.4 m/s)i - (5.8 m/s)j. over a period of 1.3 s, its velocity changes to (1.7 m/s)i + (5.9 m/s)j. What is the displacement1. A person walks 3 m north in 4 seconds, then walks 4 m west in 6 seconds. Determine the magnitude of her average velocity. 2.0 m/s 0.5 m/s 1.5 m/s 2.5 m/s 1.0 m/s