karrathomas

08.07.2019 • 

Physics

Abaseball is hit when it is 2.5ft above the ground. it leaves the bat with an initial velocity of 145ft/sec at a launch angle of 23 degrees. at the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of (-14i ft/sec) to the balls initial velocity.a 15 ft high fence lies 300 ft from home plate in the direction of the flight. a. find a vector equation for the path of the baseball b. how hight does the baseball go,and when does it reach max. height. c.find the range and flight time of the baseball, assuming its not caught d. when is the baseball 20ft high? how far is the baseball from home plate at that height e. has the batter hit a home run? explain.

Ответ:

darkdragon67

20.11.2021

Physics

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Distance of a fall from rest = (1/2) (g) (Time²)

75 m = (1/2) (9.8 m/s²) (Time²)

75 m = (4.9 m/s²) (Time²)

Divide each side by (4.9 m/s²):

Time² = (75 m) / (4.9 m/s²)

Time² = (15.3) (s²)

Square-root both sides:

Time = 3.91 seconds

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