Question

please explain its answer​

Answer 1

Explanation:

d is the right answer.........

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Answer 2

velocity of body in vertically component

u = √(3^2 + 4^2) = 5m/s

g = -10m/s^2

therefore ,

v^2 -u^2 = 2gh

h = -u^2/2g

h = -(5)^2/2*-10 = 25/20 = 5/4 = 1.2