A home run is hit in such a way that the baseball just clears awall 21 m high, l

Question

A home run is hit in such a way that the baseball just clears awall 21 m high, located 130 m from home plate. The ball is hit atan angle of 35° to the horizontal, and air resistance isnegligible. (Assume that the ball is hit at a height of 1.0 m abovethe ground.) (a) Find the initial speed of the ball.
1 m/s

(b) Find the time it takes the ball to reach the wall.
2 s

(c) Find the velocity components of the ball when it reaches thewall. x-component 3 m/s y-component 4 m/s Find the speed of the ball when it reaches the wall.
5 m/s (a) Find the initial speed of the ball.
1 m/s

(b) Find the time it takes the ball to reach the wall.
2 s

(c) Find the velocity components of the ball when it reaches thewall. x-component 3 m/s y-component 4 m/s Find the speed of the ball when it reaches the wall.
5 m/s x-component 3 m/s y-component 4 m/s

Explanation / Answer

maximum height=u*u sin235/1*9.8=21-1=20m we can have initial velocity from this equation b) time=usin37/9.8 c) X component=ucos35*time Y component=usin35*t-1/2 g*t*t d)speed=[VXcomponent2+VYcomponent2]1/2

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