Question

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 m
B. 9.8 m
C. 4.9 m
D. 2.45 m

Answer 1

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`