Question

1. A boy throws balls into air. He throws one, whenever 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

Answer:

4.9 m

Explanation:

$t = 2 \\ 2 = 2u \div g \\ u = 9.8 \\ h = {u}^{2} \div (2g) \\ h = 4.9$