Transcript Physics of Golf Presented by: Tyler Merkel and Heath Noess

Physics of Golf
Presented by: Tyler Merkel and Heath Noess
Golf History
Originated from a game
played off the coast of
Scotland
First played during the
15th century
Influenced by Kolven
from Holland and Chole
from Belgium
Changed from hitting
pebbles to hitting golf
balls
Objects in Motion
Golf ball and club are only
main objects in motion
People do not move around
a lot
Main focus on golf ball and
it’s flight
Average Speed
Speeds may vary
depending upon the player
and golf club
Speed = Distance/Time
Speed = 175/8
Speed = 22.22y/s
Acceleration
Important because it determines the
distance of the shot
Acceleration is a change in speed or
direction
Accel. = Change in Velocity/Time
Accel. = 22.22/8
Accel. = 2.78y/s/s
Momentum
Momentum =
Mass*Velocity
Momentum = 45.7*22.22
Momentum = 2.06g*y/s
Newton’s
st
1
Law
A body at rest stays at
rest unless acted upon
by an outside force.
Golf ball doesn’t move
until hit and doesn’t stop
until air resistance,
gravity, and friction
stops it.
A body in motion
stays in motion unless
acted upon by an
outside force.
Newton’s
Explains how force, mass,
and acceleration are related
Force equals mass times
acceleration.
Mass of the golf ball times
acceleration of golf club
equals distance ball will travel
nd
2
Law
Newton’s
For every action there is
an equal, opposite
reaction.
rd
3
Law
When the club hits
the ball the club exerts
a force on the ball,
and the ball exerts a
force on the club
Forces of Golf
Forces: Gravity, friction,
speed, velocity, momentum,
and acceleration.
Balanced Force
Unbalanced Force
His feet are a
balanced force
because the ground is
pushing up with the
same amount of force
as his feet are pushing
down
His club is an
unbalanced force
because the force
exerted on the ball is
greater than the force
exerted on the club
Tip: Don’t hit the ball into the water.
Weight Classes?
Weight doesn’t really
matter in this sport,
however it’s helpful to
be in shape
Friction
Friction is a force which
opposes motion
Friction is undesirable when
you don’t hit the ball far
enough and want it to keep
going but it stops
Friction is desirable when
you want the ball to stop
Work
The work equation is:
Work = Force*Distance
Work is performed by
simply walking a golf
course
Work is also done by
swinging a golf club
Work = 2*5798
Work = 2*4
Work = 11,596 foot-pounds
Work = 8 foot-pounds
Power
The power equation is:
Power = Work/Time
The amount of power
exerted from walking an
18 hole golf course
Power = 11596/4
Power = 2899 Watts
The amount of power
exerted from swinging a
golf club
Power = 8/1.38
Power = 5.80 Watts
Machines In Golf?
A golf club is a simple
machine
It is a 3rd class lever
Kinetic-Potential Energy
There is maximum
potential energy at the
top of the backswing
Potential energy is
converted into kinetic
energy when the ball
is hit
The maximum
kinetic energy
happens right before
the ball is struck
Golf An Exercise?
While it’s true golf is
not the best exercise, it is
still an exercise
The typical person
burns 396 calories playing
golf for one hour
Golf On The Moon?
If you were to play golf on the moon, the ball would
travel a lot farther because the moon has 1/6 the
gravity as on Earth.
It would also require less effort, because there is less
resistance as you are swinging.
Ways To Improve Your Game
Understand how momentum,
acceleration, and speed can
improve your swing
Understand how exerting a
stronger force on the ball, while
still controlling the shot will
increase distance
Practice, practice, practice