Question

Asked Dec 17, 2019

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A home run is hit in such a way that the baseball just

clears a wall 21 m high, located 130 m from home plate.

The ball is hit at an angle of 35° to the horizontal, and air

resistance is negligible. Find (a) the initial speed of the ball,

(b) the time it takes the ball to reach the wall, and (c) the

velocity components and the speed of the ball when it reaches

the wall. (Assume the ball is hit at a height of 1.0 m above the

ground.)

Step 1

(a) The time to reach the fence is

Step 2

At this time, the ball must 20m (21m – 1m) above its launch position, use the kinematic equation to solve for the initial speed of the ball.

Step 3

(b) Use equation (1) to find the time take...

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