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An object is throw vertically upwards. has a velocity of 20m s, when it reaches half of its maximum height. How height from the ground does it rise ? a) 25 mb) 35 mc) 40 md) 55 mplease answer fast it's urgent |
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Answer» re, the INITIAL VELOCITY of the OBJECT (u) = 20 m/s and final velocity (v) = 0 m/s Value of g = -9.8 m/sfrom Newton's third equation of the motion = 2 gh = v^-u^ 2×- 9.8 × h = 0^ - 20^ -19.6 × h = -400 h = -400/-19.6 h = 2.04 m |
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