gc textbook chapter 8 Rotational Motion (id: 3f117a187)

[问答题]
Two solid spheres simud( nfc(x(kh;c: wyk9k ltaneously std )2g; yclrgr;7(ecdtart rolling (from rest) down an incline. One sphere has twice the radius and twice the mass of the other. Which reaches the bottom of the incline first? Which has the greater speed there? Which has the greater total kinetic energy at the bottomygdlc2 ;rt e;7(c dgr)?

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