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Grade 11AIIMS MBBS

In this problem I am getting my answer as 53°. Please check if I am correct or not.

Question image for In this problem I am getting my answer as 53°. Pl

Abhishek Dogra

7 Years agoGrade 11

1 Answer

Abhishek Dogra

7 Years ago

I did it like this,

Time of flight, 2+6 = 2uy/g

So, uy = 4g = 40

And of 6-2 time of flight,

6-2 = 2vy/g

So, vy=2g = 20

Then for that 120m range,

6-2 = 2ux•vy/g (as ux=uy)

ux = 30

Finally, tanθ = uy/ux

θ = 53°

Please tell me if my method is correct or not.

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