The fastest recorded pitch in major league baseball was thrown by nolan ryan in 1974. if this pitch were thrown horizontally, the ball would fall 0.809 m (2.65 ft) by the time it reached home plate, 18.3 m (60 ft) away. how fast was ryan's pitch? ans: 450 m/s

The ball will reach the home plate at the speed of 45 m/s.

Given data:

Distance covered by ball is, d = 0.809 m.

Distance between the runner and home plate is, d' = 18.3 m.

Applying the second kinematic equation of motion to find the time taken by ball to reach the ground as,

Now, the speed of ball to reach the home plate is given as,

Thus, the ball will reach the home plate at the speed of 45 m/s.

Learn more about kinematics equation of motion here:

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The ball is thrown horizontally with some speed so that it will fall vertically downwards by distance y = 0.809 m

now using kinematics we can find the time to fall such distance

now in the same time it will reach to the distance of 18.3 m in horizontal direction

So here we will have

So it is travelling at 45.0 m/s

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.