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A boy throws balls into air.He throws one, whenver the previous one is at its highest point. How high do the balls rise if he throws one ball each sec ?A. 19.6 mB. 9.8 mC. 4.9 mD. 2.45 m

Answer» Correct Answer - C
`v = u - g t`
`0 = u - 9.8 xx 1 " " u = 9.8`
`s = 9.8 xx 1 - (1)/(2) xx 9.8 xx (1)^(2)`
`s = 4.9 m`


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