CramX Logo
2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Document preview page 1

2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Page 1

Document preview content for 2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions)

2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions)

Learn from past mistakes with 2023 PHY250 Physics Graded Exam With Answers, a comprehensive past exam guide.

William Ford
Contributor
4.3
0
12 months ago
Preview (4 of 12 Pages)
100%
Log in to unlock
Page 1 of 4
2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Page 1 preview imagePHY250_TW|Chapter 3: DynamicsQuestion1Correct6.00 points outof 6.00Started onSunday, January 1, 2023, 5:26 PMStateFinishedCompleted onSunday, January 1, 2023, 6:09 PMTime taken42 mins 29 secsGrade 150.00out of 150.00 (100%)FeedbackYou’re off to a good start. A course grade of 70% is required to request atranscript. You’ve met that for the first exam already, but if you want to reattemptfor a higher grade you can retake this assessment. Study hard for each exam,and consider using tutoring anytime you get stuck. Remember that 10 hours oftutoring are provided to you through your StraighterLine membership.A mass of 4.3 kg is accelerated to 6.0 m /s when a force of magnitudeFisapplied to it. If the same force is applied to a mass of 0.5 kg, what is theacceleration of this mass?Select one:a. 25.8 m /sb. 12.9 m /sc. 6 m /sd. 51.6 m /s22222
Page 2 of 4
2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Page 2 preview image
Page 3 of 4
2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Page 3 preview imageQuestion2Correct6.00 points outof 6.00Question3Correct6.00 points outof 6.00An airplane has an initial velocity with respect to the ground of 200 mph in aneastward direction. A strong wind begins to blow with a velocity of 80 mph fromnorth to south. What are thex-andy-components of the total velocity of the planewhen the wind is taken into account? Let north be the positivey-direction and eastbe the positivex-direction.Select one:a.v= +200 mphv= +80 mphb.v= +200 mphv= −80 mphc.v= +80 mphv= +200 mphd.v= +215 mphv= −80 mphThe position of an object along thex-axis is described by the formulax= 2t− 4t.Which of the following are the correct formulas for the velocity and acceleration ofthe object?Select one:a.v= 2tt,a= 2t− 4b.v= 6t− 4,a= 12tc.v= (1/2)t − 2t,a= (5/2)t− (2/3)td.v= 6t− 4,a= 6xyxyxyxy3224253
Page 4 of 4
2023 PHY250 Physics Graded Exam With Answers (25 Solved Questions) - Page 4 preview imageQuestion4Correct6.00 points outof 6.00Question5Correct6.00 points outof 6.00Two small carts, with massesm= 17 kg andm= 23 kg, are attached by two idealropes to a steel ball of massm= 100 kg as shown in the diagram. What are theaccelerations of the carts and the ball?Select one:a. 7 m /sb. 9.4 m /sc. 22.5 m /sd. 16.4 m /se. None of the aboveWhich is the standard unit of time in the metric system?Select one:a. minuteb. secondc. yeard. hour12b2222
Preview Mode

This document has 12 pages. Sign in to access the full document!