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File Edit View History Bookmarks Window Help a session Temporary Card Page Mastering Physics-2017 Fal ener Thi, tten Problem 842 Problem 842 Part A What is the mass of the sphere? Express your answer to two A 0.70-m-diameter solid sphere can be rotated Pro about an asis through Its center by a torque of 11. significant figures and include the appropriate units n N which accelerates it unformly from rest through a total of 160 revolutions in 160 MValue Units My Answers Give Up Incorrect: Try Again; 3 attempts remaining 8. Pro 10. Pm 12 20

Explanation / Answer

Solution-

We know that angular acceleration,

= o + ½ t²

180 * (2) = 0 + ½ (16)²

= 45/16 rad/s²

moment of inertia,

I = (2/5)mR²

= I

= ((2/5)mR²)

11.8 = ((2/5)m(½ * 0.70)²)(45/16)

m = 13.63kg

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