webassign.net 11216 1488853 SJO5b Required HW, Serway & Jewett Chapter 03 &5 You

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webassign.net 11216 1488853 SJO5b Required HW, Serway & Jewett Chapter 03 &5 You have up to 10 attempts per problem for fill-in-the-answer problems. You have up to 3 attempts per problem for multiple choice problems. You will receive credit for questions that are answered correctly by the due date. You may ignore any "comment on" or "describe" portions. I have made them worth 0 pts. You only NEED to do 7 out of the 11 problems in this (part b) Hw - your choice as to which. (Your score will be taken out of 60 points; all extra points completed will be worked into extra credit grade.) 0/9.09 points Previous Answers SerPOPS 3.0Q.002 My Notes in a circle of radius r. In a second trial, it moves at a higher speed 2v in a circle of radius A rubber stopper on the end of a string is swung steadily in a horizontal circle. In one trial, it moves at speed 2r. In this second trial, its acceleration is which of the following? the same as in the first trial four times larger one-fourth as large two times larger one-half as large Submit Answer Save Progress Practice Another Version 2. 19.09 points SerPOPS 3.0Q.005. My Notes A car moving around a circular track with constant speed (Select all that apply.) has zero acceleration has an acceleration directed toward the center of its path. has an acceleration directed away has an acceleration component in the direction of its velocity has an acceleration with a direction that cannot be determined from the information given. from the center of its path 3. +-19.09 points SerPOP5 3.P.029.MI.SA. My Notes This question has severai parts that must be completed sequentially. Ir you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part.

Explanation / Answer

1. We know that, acceleration of an object rotating in a circle with radius r

a = v^2/r

Now,

Let the acceleration of the first trial equal (v^2) / r

and Let the acceleration of the second trial equal ((2 * v)^2) / (2 * r) = 2v^2/r

Acceleration of 2nd trial is 2 times higher than acceleratio of first trial.

two times larger

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