Paratrooper jumps... opens parachute after 2s... initial height is ___ m.
Show Hint
- 82.5
- 92.5
- 62.5
- 20
The Correct Option is B
Solution and Explanation
$v^2 - u^2 = 2as \implies 25 - 400 = 2(-3)h_2 \implies h_2 = 62.5$.
$h_3 = 10$. Total $= 20 + 62.5 + 10 = 92.5$.
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