The discussion focuses on calculating the projectile motion of a golf ball hit at an initial speed of 109 km/h. Key calculations include converting the speed to meters per second, determining the longest possible hole-in-one distance, the time the ball remains airborne, and the maximum height achieved. The gravitational constant used is -9.8 m/s², with a suggestion to use -9.81 m/s² for more accuracy. The calculations involve trigonometric functions and basic kinematic equations.
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sophiegirl411 said:Homework Statement
A golfer hits the ball with an initial speed of 109km/hr
A) What is the longest hole in one (in km) that he golfer can make without the ball rolling?
B)How much time does the ball spend in the air
C) What is the maximum height reached by the ball
Homework Equations
gravity= -9.8 m/s
The Attempt at a Solution
109cos(45)=77.1 km/hr
t=77.1/g
9.8m/s *1/1000m *3600^2=127008