Question

Hello physics legends ! Can anyone try this and answer ?



Among two bodies P and Q , P thrown Q vertically downwards with initial velocities with 15m/s each from a height 20 m . The ratio of final vertical velocities of P and Q when they reach the surface of the earth.

1) 1:1
2) 5:4
3) 4:5
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Answer 1

Answer:

3) 4:5 .

Explanation:

because it is a vertical velocities so p and q reach tge surface of earth.. we write .. 1/2/base*height

hope it helps ...

Answer 2

Answer:

(1) 1:1

Explanation:

final velocity for both vertical and horizontally projected body .

$v^2 = {u}^{2} + (2)( - 9.8)(-h)$

if we apply this formula we get

24.8 : 24.8 = 1 : 1