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A home run is hit in such a way that the baseball just clears a wall 10 m high, located 126 m from home plate. The ball is hit at an angle of 31° to the horizontal, and air resistance is negligible. (Assume that the ball is hit at a height of 1.0 m above the ground.) (a) Find the initial speed of the ball. 34.7 x Write the expressions for the horizontal and vertical positions as functions of time. Then use the equations to find the initial speed and the time when the baseball reaches the height of interest. m/s (b) Find the time it takes the ball to reach the wall. S (c) Find the velocity components of the ball when it reaches the wall. X-component m/s m/s y-component Find the speed of the ball when m/s reaches the wall.

A home run is hit in such a way that the baseball just clears a wall 10 m high, located 126 m from home plate. The ball is hit at an angle of 31° to the horizontal, and air resistance is negligible. (Assume that the ball is hit at a height of 1.0 m above the ground.) (a) Find the initial speed of the ball. 34.7 x Write the expressions for the horizontal and vertical positions as functions of time. Then use the equations to find the initial speed and the time when the baseball reaches the height of interest. m/s (b) Find the time it takes the ball to reach the wall. S (c) Find the velocity components of the ball when it reaches the wall. X-component m/s m/s y-component Find the speed of the ball when m/s reaches the wall.

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A home run is hit in such a way that the baseball just clears a wall 10 m high, located 126 m from home plate. The ball is hit at an angle of 31° to the horizontal, and air resistance is negligible. (Assume that the ball is hit at a height of 1.0 m above the ground.) (a) Find the initial speed of the ball. 34.7 X Write the expressions for the horizontal and vertical positions as functions of time. Then use the equations to find the initial speed and the time when the baseball reaches the height of interest. m/s (b) Find the time it takes the ball to reach the wall. S (c) Find the velocity components of the ball when it reaches the wall. X-component m/s y-component m/s Find the speed of the ball when it reaches the wall. m/s
Transcribed Image Text:A home run is hit in such a way that the baseball just clears a wall 10 m high, located 126 m from home plate. The ball is hit at an angle of 31° to the horizontal, and air resistance is negligible. (Assume that the ball is hit at a height of 1.0 m above the ground.) (a) Find the initial speed of the ball. 34.7 X Write the expressions for the horizontal and vertical positions as functions of time. Then use the equations to find the initial speed and the time when the baseball reaches the height of interest. m/s (b) Find the time it takes the ball to reach the wall. S (c) Find the velocity components of the ball when it reaches the wall. X-component m/s y-component m/s Find the speed of the ball when it reaches the wall. m/s
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