nt | Help Week5 Begin Date: 6/26/2023 12:01:00 AM -- Due Date: 7/11/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (4%) Problem 7: Referring to the image to the right, the mass of Block 1 is my = 3.47 kg while the mass of Block 2 is m2 = 9.33 kg. The coefficient of kinetic friction between Block 1 and the inclined surface is uk = 0.37. The inclined surface is at an angle 0 = 37.2 above the horizontal. 1 2 pleted 50% Part (a) Using the variables from the problem statement together with the acceleration due to gravity, g, write an equation for the magnitude of the ipleted apleted downward. acceleration of the system. Hint: Based upon the numeric choices, Block 1 will accelerate up the incline while the suspended block, Block 2, accelerates vertically pleted Grade Summary Deductions 0% Potential 100% cos(a) cos(Q) cos( 0) ( ) 7 8 9 npleted Submissions sin(a sin() sin(0) 45 6 Attempts remaining: 999 Hs 1 2 3 0% per attempt) detailed view d g m1 0 my VO Submit I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. A 50% Part (b) Calculate the magnitude, in meters per squared second, of the system's acceleration. All content @ 2023 Expert TA, LLC F9 F10 F12 X F3 F4 @ S % O 5 6 O P W E R SStudent Class Management | Help Week5 Begin Date: 6/26/2023 12:01:00 AM -- Due Date: 7/11/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (4%) Problem 8: A car moves parallel to the x axis and its velocity v depends on position x as v = kx , where k is a constant. Write an expression for the net force on the car as a function of its mass m and the variables k and x. EF = Y ( ) 7 8 9 HOME b C d 4 5 6 h j 1 2 3 m n + 0 END X VO CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback All content @ 2023 Expert TA, LLC X 08 F5 F6 FT F10 exClass Management | Help Week5 Begin Date: 6/26/2023 12:01:00 AM -- Due Date: 7/11/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (8%) Problem 10: An ideal massless rope passes over a massless, frictionless pulley. Block A with mass ma =6.9 kg, and block B with mass mg =3.1 kg, are suspended from opposite ends of the rope, as shown. (This contraption is known as an Atwood's machine.) Consider the motion of the blocks after they are released from rest. Let a be the magnitude of their acceleration, and let Fr be the tension in the rope. Let upward be the positive y direction for block B, and let downward be the positive y direction for block A. A ed B ed ted ted A 25% Part (a) Write an expression for the net force on block A consistent with the positive direction as given in the problem statement. Fnet, A = Grade Summary Deductions 0% Potential 100% leted B Y ( ) 7 8 9 Submissions d FT g 4 5 6 Attempts remaining: 999 (0% per attempt) k 1 2 3 detailed view m MA + 0 P S VO Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 2 "Feedback: 0% deduction per feedback 25% Part (b) Write an expression for the net force on block B consistent with the positive direction as given in the problem statement. 4 25% Part (c) Enter an expression for the acceleration of either block. 4 25% Part (d) What is the numerical value, in newtons, of the tension in the rope? All content @ 2023 Expert TA, LLC X F10 F12 Insert F4 F6 F9 F11 F3 S % & 4 5 6 P W E R SClass Management | Help Week5 Begin Date: 6/26/2023 12:01:00 AM -- Due Date: 7/11/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (8%) Problem 11: A small block of mass M = $50 g is placed on top of a larger block of mass 3M which is placed on a level frictionless surface and is attached to a horizontal spring of spring constant k = 3.8 N/m. The coefficient of static friction between the blocks is u = 0.2. The lower block is pulled until the attached spring is stretched a distance D = 7.5 cm and released. Randomized Variables M = 850 g D = 7.5 cm k = 3.8 N/m A 25% Part (a) Assuming the blocks are stuck together, what is the maximum magnitude of acceleration amar of the blocks in terms of the variables in the problem statement? Grade Summary amax Deductions 0% Potential 100% a B () 7 8 9 HOME Submissions Attempts remaining: 999 a c 4 5 6 (0% per attempt) D g h 1 2 3 detailed view M t VO Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback 4 25% Part (b) Calculate a value for the magnitude of the maximum acceleration amax of the blocks in m/s 25% Part (c) Write an equation for the largest spring constant kmax for which the upper block does not slip. 4 25% Part (d) Calculate a value for the largest spring constant kmax for which the upper block does not slip, in N/m. All content @ 2023 Expert TA, LLC X F9 F10 F11 F12 Insent FA F6 & S % 8 4 5 P Rthe ExpertTA.com Student: talghazi2101@ student Class Management | Help Week5 Begin Date: 6/26/2023 12:01:00 AM -- Due Date: 7/11/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (4%) Problem 13: A given highway turn has a 105 km/h speed limit and a radius of curvature of 1.05 km. ted What banking angle (in degrees) will prevent cars from sliding off the road, assuming everyone travels at the speed limit and there is no friction present? ted 0 = Grade Summary ted Deductions Potential 100 ted sin() cos tan() 7 8 9 Submissions cotan() 4 5 6 Attempts remaining: asin acoso (0% per attempt) atan() acotan() sinh() 2 3 detailed view eted cosh( tanh() cotanh() +- 0 Degrees O Radians VO Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. All content @ 2023 Expert TA, LLC FA F6 F10 F12 F3 S % 5 P E R