HW 5 - Part B Begin Date: 1/29/2018 12:00:00 AM - Due Date: 2/9/2018 11:59:00 PM
ID: 1870631 • Letter: H
Question
HW 5 - Part B Begin Date: 1/29/2018 12:00:00 AM - Due Date: 2/9/2018 11:59:00 PM End Date: 2/16/2018 11:59:00 PM (2006) Problem 5: Two blocks are connected by a massless string which passes through the center of a rotating turntable. The blocks have masses Mi-1.9 kg and M2 2.2 kg. Block 1 rests a distance r = 0.49 m from the center of the turntable The coefficient of static friction between block and turntable is 0.59. Block 2 hangs vertically underneath. ©theexpertta.com At what velocity will the first block start to move outward in ms? Grade Summary Deductions Potential 0% 100% 7 8 9 sin0 cotan0asin acos0 atan0 acotan sinhO cosh0 tanh cotanh0 cos) tan Submissions ts remaining: 9 *12 3 (090 per attempt) detailed view END 0% Degrees Radians NO Submit Hint I give up! Hints: deduction per hint. Hints remaining: Feedback: deduction per feedback.Explanation / Answer
M1 = 1.9 kg
M2 = 2.2 kg
on m2 net force in vertiacal direction T = M2*g
on m1
T +fs = M1*v^2/r
M2*g + us*M1*g = M1*v^2/r
2.2*9.8 + (0.59*1.9*9.8) = 1.9*v^2/0.49
v = 2.89 m/s
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