Mickey mantle hit the longest home run ever.It went 200 mete

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Mickey mantle hit the longest home run ever.It went 200 meters.Assuming he hit it at 45 degrees,find the velocity at which he hit the ball.(Hint:Vx=Vy,and solve 2 equactions)

The time for the ball go up and land is t=2Vy/g
The x direction distance is Vx*t=200
and Vx=Vy as the angel is 45
So 2V^2/g=200
Vx=Vy=squareroot(1000)
V=squareroot(Vx^2+Vy^2)=squareroot(2000)=200*squareroot(5) m/s

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