35. A 10 N tangential force is applied at the edge of a 20 kg disk with a radius of 2.0 m. Then, the disk rotates from rest.
What is the kinetic energy of the disk 3.0 s after the force is applied?
(A) 180 J
(B) 360 J
(C) 45 J
(D) 90 J
(E) 23 J
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統計: A(1), B(1), C(28), D(3), E(5) #2336735
統計: A(1), B(1), C(28), D(3), E(5) #2336735