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IUT_10-11
HSC - পদার্থ বিজ্ঞান ১ম পত্র
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অধ্যায়-০৪ঃ নিউটনিয়ান বলবিদ্যা
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A lift is going down with an acceleration of 4.8 m/s2. A ball is released 2m height from the floor of the lift. How much time it will take to hit the floor by the ball?
A.
2 sec
B.
1.5 sec
C.
0.984 sec
D.
0.965 sec
E.
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