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# HW: Forces Begin Date: 9/24/2023 12:01:00 AM -- Due Date: 11/9/2023 11:59:00 PM End Date: 12/15/2023 11:59:00 PM (17%) Problem 4: A flea (of

## HW: Forces Begin Date: 9/24/2023 12:01:00 AM -- Due Date: 11/9/2023 11:59:00 PM End Date: 12/15/2023 11:59:00 PM (17%) Problem 4: A flea (of mass 6 10-7 kg) jumps by exerting a force of 1.45 10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.51 x 10-6 N on the flea. Randomized Variables f1=1.45 10-5 N f2 x =0.51 x 10-6 N 50% Part (a) Find the direction of the acceleration of the flea in degrees relative to the vertical. 8 = cos sin() cotan() asin() acos() atan() acotan() sinh() tan () 7 EMN4 8 9 5 6 HOME * 1 2 3 cosh() tanh() cotanh() Degrees Radians + - 0 END VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 4 Feedback: 0% deduction per feedback. A 50% Part (b) Find the magnitude of the net force acting on the flea in Newtons. All content 2023 Expert TA, LLC Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 100 (1% per attempt) detailed view (17%) Problem 6: Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one block with mass m = 12.5 kg is on a horizontal table and the other block with mass m = 9.5 kg hangs vertically. Both blocks experience gravity and the tension force, T. Use the coordinate system specified in the diagram. m -x m2 Otheexpertta.com 25% Part (a) Assuming friction forces are negligible, write an expression, using only the variables provided, for the acceleration that the block of mass my experiences in the x-direction. Your answer should involve the tension, T. a Tim Correct! 25% Part (b) Under the same assumptions, write an expression for the acceleration, a, the block of mass my experiences in the y-direction. Your answer should be in terms of the tension, I and m. a2 m2-T/m2 X Attempts Remain Feedback: is available. 25% Part (c) Carefully consider how the accelerations a and a are related. Solve for the magnitude of the acceleration, a, of the block of mass m, in meters per square second. a = Grade Summary Deductions 1% 99% Potential Submissions Attempts remaining: 99 (1% per attempt) detailed view cancel asin() acos() =asin() = acos() ( ) 7 MN4 atan acotan =atan() =acotan() * 1 852 9 HOME 6 3 1 0 END COSHU Degrees Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. 25% Part (d) Find the magnitude of the tension in the rope, I, in newtons. 1%

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