Problem 9.7 Part A A2.1 kg object is moving to the right in the positive z direc

Question

Problem 9.7 Part A A2.1 kg object is moving to the right in the positive z direction with a speed of 15 m/s Objectexperienoes the foroe shown in (Figure 1).What is the objects speed after the foroe ends? Express your answerto two significant figures and include the appropriate units. Value ml Submit My Answers Ghe Up Incorrect; Try Again Part B What is the direction ofthe objects velocity after the foroe ends? To the right To the left The object will stop Submit My Answers Give Up Correct of 2 Part C Objectexperienoes the foroe shown in (Figure 2). What is the objects speed after the foroe ends? Express your answerto two significant figures and include the appropriate units. F, (N) Submit My Answers Ghe Up Incorrect; Try Again

Explanation / Answer

Work done by force = F*s = 1J

W = change in ke = 0.5 m ( V^2 - U^2) = 1

V= 1.79 m/sec ( ans)

Direction will be towards the right.

Figure 2 is not shown.. it will have similar concept as in part 1 by calculating work done.

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