Chapter 2 Begin Date: 8/2472018 12501500 AM-Due Date: 972018 11:59:00 PM End Dat

Question

Chapter 2 Begin Date: 8/2472018 12501500 AM-Due Date: 972018 11:59:00 PM End Date: 9/14/2018 11:59:00 PM (7%) Problem 3: A particle's position along the x-axis is described by the function x(t) = A t + BF. where t is in seconds, x is in meters, and the constants A and B are given below. Randomized Variables A--2.6 m/s B 5.2 m/s 50% Part (a) Enter an expression, in terms of A, B, and r, for the velocity of the particle as a function of time. 7 8 9 4 5 6 1 2 3 Submit Feedback: deduction per feedback Hints: 5%deduction per hint. Hints remaining: "I 50% Part (b) At what time, in seconds, is the particle's velocity zero? Allenm ©2018 Expert tA, LLC FVO F9 F8 F7 O0D F4

Explanation / Answer

Here, given

x(t) = At + Bt^2

In order to make it a velocity function, the derivative has to be done

Therefore, v(t) = A + 2Bt

On substituting values, we get

V(t) = -2.6 +2(5.2)t

V(t)= 10.4t -2.6

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