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(7%) Problem 11: With the aid of a string, a gyroscope is accelerated from rest to 35 rad/s in 0.36 s. Randomized Variables W = 35 rad/s t = 0.36 s Shah, Isha - shahis 17@students.rowan.edu 50% Part (a) What is its angular acceleration, in radians per square seconds? a = 97.2 Correct! *50% Part (b) How many revolutions does it go through in the process? 0 = - 6.31 sin() cos() tan() 7 8 9 HOME cotan() asin( acos E 6 atan() acotan() sinh() 2 3 cosh() tanh() cotanh() + END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -Which rotational kinematic equation has the necessary variables? What units is your kinematic equation in versus what the question is asking?(7%) Problem 14: While exercising in a tness center, a man lies face down on a bench and lifts a weight with one lower leg by contacting the muscles in the back of the upper leg. 83 50% Part (3) Find the magnitude of the angular acceleration produced given the mass lifted is 9.5 kg at a distance of 28 .5 cm from the knee joint, the moment of inertia of the lower leg is 0.89 kg-mz, the muscle force is 1600 N, and its effective perpendicular lever arm is 3.15 cm. a = 6.7 X Attempts Remain A 50% Part (b) How much work is done if the leg rotates through an angle of 22 with a constant force exerted by the muscle? Grade Summary net W: I I Deductions Potential 100% . Submissions s1n() cos() tan() l n: ( l 7 9 Attempts remaining: . ( per attempt) _ cotano asmo acoso | E | 4 6 macaw atan() acotan() sinh() | | 1 3 cosh() tanh() cotanhO | + - | 0 Degrees O Radians 1/() Submit | Hint l l I give up! Hints: deduction per hint; Hints remaining: _ Feedback: deduction per feedback