Mickey mantle hit the longest home run ever.It went 200 meters.Assuming he hit it at 45 degrees,find the velocity at whi
问题描述：
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)
答
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