Professor Price PHYS 1305/1405-01 February 13, 2018 26. What is the net force on

Question

Professor Price PHYS 1305/1405-01 February 13, 2018 26. What is the net force on a bathroom scale when a 150-pound person stands on it? ON B) 150 N C) 300 N. D) None of the above. (56 by thef 150 27. Given the figure below, rank the forces needed to stop them in the same time interval from least to greatest. Air and ice friction are negligible. 2 m/s 4 m/s 6 m/s A A, B, C B) B, A, C C) C, A, B D) C, B, A wewtins ist Lau 28. Using the same diagram as in Problem 27 above, rank the forces needed to keep them moving from greatest to least. Air and ice friction are negligible. A) A, B, C B) B, A, C C) C, A, B E) None of the above. Chapter 3: Linear Motion 29. From least to greatest, rank the tracks in terms of the average speeds of the balls. A, C d AA, B, C B) B, C, A C) C, A, B D) A-B-C

Explanation / Answer

28) As they are already in motion with their respective velocities, and air and ice friction are absent, therefore no force is required to keep them moving.

Hence, the option is E. none of the above

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