MCQOPTIONS
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MCQOPTIONS
| 1. |
A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?# |
| A. | ω<sub>A</sub> is lesser than ω<sub>B</sub> |
| B. | ω<sub>A</sub>=ω<sub>B</sub> |
| C. | ω<sub>A</sub>=ω |
| D. | ω<sub>B</sub>=ω |
| Answer» D. ‚âà√¨‚àö¬¢<sub>B</sub>=‚âà√¨‚àö¬¢ | |