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प्रश्न
Three speed-time graphs are given below :
Which graph represents the case of:
(i) a cricket ball thrown vertically upwards and returning to the hands of the thrower ?
(ii) a trolley decelerating to a constant speed and then accelerating uniformly ?
उत्तर
(i) Graph (c) represents a cricket ball thrown vertically upwards and returning to the hands of the thrower.
(ii) Graph (a) represents a trolley decelerating to a constant speed and then accelerating uniformly.
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