A ball moving horizontally with speed u strikes the bob of a simple pendulum at rest....

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A ball moving horizontally with speed u strikes the bob of a simple pendulum at rest. The mass of the bob is equal to that of the ball. If the collision is elastic the bob will rise to a height. (a) 1² g To m m (m) (b) 28 (c) 1² 4g (d) 88 A ball moving horizontally with speed u strikes the bob of a simple pendulum at rest. The mass of the bob is equal to that of the ball. If the collision is elastic the bob will rise to a height. (a) 1² g To m m (m) (b) 28 (c) 1² 4g (d) 88