IUT_14-15
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HSC - পদার্থ বিজ্ঞান ১ম পত্রঅধ্যায়-০৩ঃ গতিবিদ্যাAll Topics

A ball is thrown vertically upwards with speed 7.7ms-1 from the top of a sheer cliff of height 21m. The time taken by the ball to reach the foot of the cliff is- [Assume g=9.8ms2g = 9.8ms^{-2}]

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