Name: EXAM 1 Phys221 Takehome Portion Show wor tislaxtonlog My Fullama Phys 221 Exam 1 Take Home Portion Fall 22 moitod ads andonex 1 norva at hap E Inlog . her Instructions: 1. PRINT a HARDCOPY (or use the copy you received in class) and use that to answer all questions. Alternatively, import the exam into a tablet and do your work electronically. If you do not print a hardcopy, you MUST copy all problems and then answer the questions. If you do not do this, there will be a 10% deduction. 2. When done, scan your pages and upload them as a pdf to Canvas. DO NOT UPLOAD INDIVIDUAL PAGES, make sure to combine all pages to make ONE pdf. 3. There is no time limit. Make sure your work is VERY clear and your handwriting is very legible. You must do all work on your own. You may use your book and material on our Phys221 Canvas. 4. Since I might print these for grading, please write your name on each page. 5. Late submissions: there will be a severe and increasing deduction for late submissions. I HIGHLY recommend you submit several hours before the due time. If you do that and there are technical difficulties, you have a chance to fix any problems. Please plan accordingly. Don't start scanning 5 minutes before the exam is due. No submissions will be accepted after 3 pm. Due: Sunday, October 23, 2 pm. Exam1_F22 Takehome.docxName: EXAM 1 Phys221 Takehome Portion Show wor tislaxtonlog My Fullama Phys 221 Exam 1 Take Home Portion Fall 22 moitod ads andonex 1 norva at hap E Inlog . her Instructions: 1. PRINT a HARDCOPY (or use the copy you received in class) and use that to answer all questions. Alternatively, import the exam into a tablet and do your work electronically. If you do not print a hardcopy, you MUST copy all problems and then answer the questions. If you do not do this, there will be a 10% deduction. 2. When done, scan your pages and upload them as a pdf to Canvas. DO NOT UPLOAD INDIVIDUAL PAGES, make sure to combine all pages to make ONE pdf. 3. There is no time limit. Make sure your work is VERY clear and your handwriting is very legible. You must do all work on your own. You may use your book and material on our Phys221 Canvas. 4. Since I might print these for grading, please write your name on each page. 5. Late submissions: there will be a severe and increasing deduction for late submissions. I HIGHLY recommend you submit several hours before the due time. If you do that and there are technical difficulties, you have a chance to fix any problems. Please plan accordingly. Don't start scanning 5 minutes before the exam is due. No submissions will be accepted after 3 pm. Due: Sunday, October 23, 2 pm. Exam1_F22 Takehome.docxEXAM 1 Phys221 Takehome Portion Name: gal motion for When (time) does the block reach the bottom? pe How long is the incline? em qu the e. [18 pts] Draw the x-t graph, the v-t graph and the a-t graph for this motion. Make sure to use the same scale on the time axis. Your graphs have to be qualitatively correct and consistent, and you un have to include numerical values (for point B, the turning point, time and position, as well as for A ic and C, position and velocity). You do not need to Di show your calculations. Exam1_F22 Takehome.docxEXAM 1 Phys221 Takehome Portion Name: gal motion for When (time) does the block reach the bottom? pe How long is the incline? em qu the e. [18 pts] Draw the x-t graph, the v-t graph and the a-t graph for this motion. Make sure to use the same scale on the time axis. Your graphs have to be qualitatively correct and consistent, and you un have to include numerical values (for point B, the turning point, time and position, as well as for A ic and C, position and velocity). You do not need to Di show your calculations. Exam1_F22 Takehome.docxPhys221: Projectile Motion Lab .la Motion Lab EXAM EXAM 1 Phys221 Takehome Portion Name: Problem 2 (50 points) Show your math. At time t=0 a ball is launched with a speed of vo at an angle of 0 with respect to the horizontal. Ignore air Vo resistance except when specifically instructed to consider it. 0=30 vo = 30 m/s Use g=10m/s2 a. [6 pts] Find the x- and y-components of the initial velocity. b. [8 pts] How long does it take for the ball to reach the highest point of its trajectory? c. [12 pts] Find the total flight time of the ball (i.e. until it hits the ground again) and the horizontal distance it covers. Exam1_F22 Takehome.docxEXAM 1 Phys221 Takehome Portion Name: For the rest, no explanations are required: d. [12 pts] For this part, use the coordinate system given in the figure on the previous page. Sketch the x-t, Vx-t, and ax-t graphs for the entire motion. No numbers required, just sketch, but make sure to use the same scaling on the time axis. Sketch the y-t, Vy-t, and ay-t graphs for the entire motion. - + e. [3 pts] If there was air resistance would it take the ball more, less, or the same amount of time to reach the highest point of its trajectory? (i) more (ii) less (iii) the same (iv) more information is needed If your answer is (iv): which information is needed? f. [6 pts] Back to no air resistance. If the ball is launched at a steeper angle, which of the following statements must be true? The range must be greater. True / False The total time of flight must be greater. True / False The impact speed when the ball hits the ground must be the same. True / False g. [3 pts] For what launch angle other than 30 degrees would you get the same range? Other launch angle in degrees: Exam1_F22 Takehome.docxEXAM 1 Phys221 Takehome Portion Name: For the rest, no explanations are required: d. [12 pts] For this part, use the coordinate system given in the figure on the previous page. Sketch the x-t, Vx-t, and ax-t graphs for the entire motion. No numbers required, just sketch, but make sure to use the same scaling on the time axis. Sketch the y-t, Vy-t, and ay-t graphs for the entire motion. - + e. [3 pts] If there was air resistance would it take the ball more, less, or the same amount of time to reach the highest point of its trajectory? (i) more (ii) less (iii) the same (iv) more information is needed If your answer is (iv): which information is needed? f. [6 pts] Back to no air resistance. If the ball is launched at a steeper angle, which of the following statements must be true? The range must be greater. True / False The total time of flight must be greater. True / False The impact speed when the ball hits the ground must be the same. True / False g. [3 pts] For what launch angle other than 30 degrees would you get the same range? Other launch angle in degrees: Exam1_F22 Takehome.docxProj Names: Mutebo Alqahtani (Mo) EXAM EXAM 1 Phys221 Takehome Portion Name: Problem 1 (50 points) Explain your work. A block is moving on a frictionless incline. XB The incline has an angle of 0 = 30 with XA tB ta respect to the horizontal. The x-axis of your VB B VA coordinate system points downhill, with the XC origin at the top, as shown. tc a=? A X Initially, the block is located in position A, VC 3.00 m away from the top (see picture) and is C moving uphill with a speed of 2.00 m/s. The block turns around at point B and moves downhill. When it reaches the bottom of the incline (location C), it has a speed of 5.00 m/s. Use g = 10 m/2. [12 pts] In the figure above, all variables are defined (at point A we have position XA, time tA, and velocity VA, etc.). In the table below: . for all variables that are known: fill in their values, including sign and unit, and . for all variables that are unknown: put a question mark. Sign, #, unit Sign, #, unit Sign, #, unit XA XB XC tA tB to VA VB VC a b. [20 pts] When (i.e. find the time) does the block reach the bottom (location C) and how long is the incline? As in class, state the equation you use and then plug in numbers to find a numerical solution. Exam1_F22 Takehome.docx