(10%) Problem 5: Jeremy is playing with a yoyo of mass mo = 21 grams. The...

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(10%) Problem 5: Jeremy is playing with a yoyo of mass mo = 21 grams. The yoyo string is let out to length r, = 54 cm, and he spins the yoyo in a horizontal circle at a constant rate of w, = 5.9 rads/sec. The yoyo string makes an angle of 0, with the horizontal (see figure). W O ✓ Correct! ✓ 17% Part (a) Choose the correct free body diagram for this problem, where the weight of the yoyo is Wo, the tension in the string is T5, and the centripetal force on the yoyo is Fe. 17% Part (b) Calculate the tension in the string 7,, in newtons. T,= 0.39 ✔Correct! Is ✓ 17% Part (c) Calculate the angle e, in degrees. 0,= 31.85 ✓ Correct! 0₁ 00₂ Ⓒtheexpertta.com 17% Part (d) Jeremy increases the angular speed of the yoyo such that the angle , decreases to one half of its initial value. Calculate the new angular velocity of in radians per second, of the yoyo. @f=6.04 X Attempts Remain 17% Part (e) Jeremy has now increased the angular speed of the yoyo such that the angle , has decreased to one half of its initial value. Calculate the new tension Tf, in newtons, of the string using of from the previous part. ✓ 17% Part (b) Calculate the tension in the string T,, in newtons. T, = 0.39 ✓ Correct! ✓ 17% 0,= 31.85 ✓ Correct! Part (c) Calculate the angle 0, in degrees. 17% Part (d) Jeremy increases the angular speed of the yoyo such that the angle , decreases to one half of its initial value. Calculate the new angular velocity of in radians per second, of the yoyo. @f=6.04 X Attempts Remain 17% Part (e) Jeremy has now increased the angular speed of the yoyo such that the angle , has decreased to one half of its initial value. Calculate the new tension Tf, in newtons, of the string using of from the previous part. T;= 31.85 x Attempts Remain ▷ A 17% Part (f) If the increase in the angular velocity of the yoyo took place over 1.2 seconds, calculate the angular acceleration a, in radians per square second, of the yoyo during the increase. αo = sin() cos() cotan() asin() atan() acotan() cosh() tanh() ●Degrees Submit Hints: 2% deduction per hint. Hints remaining: 3 tan() acos() sinh() cotanh() Radians Hint π ( ^^ ^/ 1 9 7 8 4 5 6 1 2 3 + 0 VO BACKSPACE . DEL HOME END CLEAR Feedback I give up! Feedback: 2% deduction per feedback. Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 7 (4% per attempt) detailed view (10%) Problem 5: Jeremy is playing with a yoyo of mass mo = 21 grams. The yoyo string is let out to length r, = 54 cm, and he spins the yoyo in a horizontal circle at a constant rate of w, = 5.9 rads/sec. The yoyo string makes an angle of 0, with the horizontal (see figure). W O ✓ Correct! ✓ 17% Part (a) Choose the correct free body diagram for this problem, where the weight of the yoyo is Wo, the tension in the string is T5, and the centripetal force on the yoyo is Fe. 17% Part (b) Calculate the tension in the string 7,, in newtons. T,= 0.39 ✔Correct! Is ✓ 17% Part (c) Calculate the angle e, in degrees. 0,= 31.85 ✓ Correct! 0₁ 00₂ Ⓒtheexpertta.com 17% Part (d) Jeremy increases the angular speed of the yoyo such that the angle , decreases to one half of its initial value. Calculate the new angular velocity of in radians per second, of the yoyo. @f=6.04 X Attempts Remain 17% Part (e) Jeremy has now increased the angular speed of the yoyo such that the angle , has decreased to one half of its initial value. Calculate the new tension Tf, in newtons, of the string using of from the previous part. ✓ 17% Part (b) Calculate the tension in the string T,, in newtons. T, = 0.39 ✓ Correct! ✓ 17% 0,= 31.85 ✓ Correct! Part (c) Calculate the angle 0, in degrees. 17% Part (d) Jeremy increases the angular speed of the yoyo such that the angle , decreases to one half of its initial value. Calculate the new angular velocity of in radians per second, of the yoyo. @f=6.04 X Attempts Remain 17% Part (e) Jeremy has now increased the angular speed of the yoyo such that the angle , has decreased to one half of its initial value. Calculate the new tension Tf, in newtons, of the string using of from the previous part. T;= 31.85 x Attempts Remain ▷ A 17% Part (f) If the increase in the angular velocity of the yoyo took place over 1.2 seconds, calculate the angular acceleration a, in radians per square second, of the yoyo during the increase. αo = sin() cos() cotan() asin() atan() acotan() cosh() tanh() ●Degrees Submit Hints: 2% deduction per hint. Hints remaining: 3 tan() acos() sinh() cotanh() Radians Hint π ( ^^ ^/ 1 9 7 8 4 5 6 1 2 3 + 0 VO BACKSPACE . DEL HOME END CLEAR Feedback I give up! Feedback: 2% deduction per feedback. Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 7 (4% per attempt) detailed view