Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:26 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OT To O B G colouring night -... 3110 coursehero 3110 midterm prep midterm 2 TU Ch2.pdf 2016 midterm.pdf * ACLS Assignment Assignment 6 JB Learn Java | Onlin... W U TIV 2 Automatic Zoom Q1) Vectors and 1-D motion Two external forces act on an object: F1 = 4N i - 3N j F2 = -5Ni + 1Nj a) Add the two forces graphically to find the net force. Clearly label F1, F2 and Fnet b) Find the unit vector parallel to F2 c) What is the angle between F1 and the positive x-axis? When a Mars-lander is 500 m above the surface of the planet (at t=0s), it has a downward speed of 10 m/s. It is falling with a constant downward acceleration of 3.7 m/s2. 10s later, the lander turns on its landing rockets. These provide a constant upward force. The rockets stay on for 30s until the lander gently touches the surface at 0 m/s. All Drawsaranksofthe hnight It) .notinal clanitisitl and andalaration all JUL 13 utv O 4Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:26 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OF To O B G colouring night -... 3110 coursehero 3110 midterm prep *midterm 2 7 Ch2.pdf 2016 midterm.pdf * ACLS Assignment Assignment 6 JB Learn Java | Onlin... W U TIV 2 01 4 Automatic Zoom When a Mars-lander is 500 m above the surface of the planet (at t=0s), it has a downward speed of 10 m/s. It is falling with a constant downward acceleration of 3.7 m/s2. 10s later, the lander turns on its landing rockets. These provide a constant upward force. The rockets stay on for 30s until the lander gently touches the surface at 0 m/s. d) Draw graphs of the height y(t), vertical velocity v(t), and acceleration a(t). Assume that up is positive and the surface is at y=0. Make sure that the rockets turn on and the lander reaches the surface at the correct times. No calculations are required. You are only graded on the shape of your graphs. e) What is the velocity of the lander when the rockets turn on? f) What is the height of the lander when the rockets turn on? g) What is the acceleration of the lander while the rockets are on? JUL 13 O 4Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:26 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OT To O B G colouring night -... 3110 coursehero 3110 midterm prep *midterm 2 7 Ch2.pdf * 2016 midterm.pdf * ACLS Assignment Assignment 6 JB Learn Java | Onlin... W U T V Of 4 Automatic Zoom Q2) Forces A box with mass m is on a frictionless inclined ramp, as m shown. The ramp has an angle of 0 with respect to the horizontal. The ramp is firmly attached to the inside of a car. The car is traveling to the right, and is slowing down. The car has a constant acceleration with magnitude a. You observe that while the car is slowing down, the box doesn't slide up or down the ramp. a) What is the angle of the ramp? Write your answer in variables, using only m, g, and a. This problem should be solved using the "recipe" taught in class. The "recipe" has four steps. To be graded correct, you must clearly show all four steps! JUL 13 O 4 W-Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:26 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OF To O B G colouring night -... 3110 coursehero 3110 midterm prep *midterm 2 JU Ch2.pdf * 2016 midterm.pdf ACLS Assignment Assignment 6 B Learn Java | Onlin. W U TV 3 01 4 Automatic Zoom The "recipe" has four steps. To be graded correct, you must clearly show all four steps! b) Suppose that the driver now presses harder on the brakes. Would the box slide up the ramp, or slide down the ramp? Or would it not slide at all? No calculation required, but very briefly (one or two sentences) justify your answer. Draw a simple diagram if it helps! w m 13 C tv A EEChrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:26 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OT To O B G colouring night -... 3110 coursehero 3110 midterm prep midterm 2 7 Ch2.pdf * 2016 midterm.pdf * ACLS Assignment Assignment 6 28 Learn Java | Onlin... W U TIV 4 01 4 Automatic Zoom Q3) Projectile motion An archer shoots an arrow into the air. On the way up, the arrow hits an apple in a tree. The arrow leaves the bow 1.5 m above the ground, at an angle of 30 above the horizontal, and with an initial speed of 20 m/s. There is no air resistance. The center of the apple is 6.6 m above the ground. Treat the apple as a point (ignore its size). a) What is the horizontal distance between the archer and the apple? This problem should be solved using the "recipe" taught in class. The "recipe" has five steps. To be graded correct, you must clearly show all five steps! b) If the archer used the same angle (30 above the horizontal) but had a faster initial speed (greater than 20 m/s), would the arrow go above the apple, below the apple, or hit the apple? Or is it impossible to know? No calculation required, but very briefly (one or two sentences) justify your answer. Draw a simple diagram if it helps! ") If the arshar Iced the cama initial enand /20 m /el hut aimed at a stanner anala lenmawhara JUL 13 utv O 4Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Thu Jul 13 12:27 PM (765) D FRIGA - YouTube (766) I Called Him OUT In HIS X Big Guard U - iGotNext Sport X axispoint X D2L MT1 - Questions - PHYC1190 + C dal.brightspace.com/d21/le/content/272266/viewContent/3703601/View G OF To O B G colouring night -... 3110 coursehero 3110 midterm prep *midterm 2 JU Ch2.pdf * 2016 midterm.pdf ACLS Assignment Assignment 6 | Learn Java | Onlin. W U TIV 4 0T 4 Automatic Zoom The "recipe" has five steps. To be graded correct, you must clearly show all five steps! b) If the archer used the same angle (30 above the horizontal) but had a faster initial speed (greater than 20 m/s), would the arrow go above the apple, below the apple, or hit the apple? Or is it impossible to know? No calculation required, but very briefly (one or two sentences) justify your answer. Draw a simple diagram if it helps! c) If the archer used the same initial speed (20 m/s) but aimed at a steeper angle (somewhere between 30 and 90), would the arrow go above the apple, below the apple, or hit the apple? Or is it impossible to know? No calculation required, but very briefly (one or two sentences) justify your answer. Draw a simple diagram if it helps! 13 C tv A