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13. A ball is thrown vertically upwards. It has a speed of 10m/sec whenit has reached one half of its maximum height. How high does theball rise? Take g = 10 m/s?. |
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Answer» From 3rd equation of motion v2 = u2 - 2gH0=u^2-2g (H/2)=u^2-gHH= u^2/g= ?10?^2/10 =10 m |
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