Forces and motion project

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Forces and motion project
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Scenario
Scenario

• A ball is lying in a field completely
  still, all of a sudden a big gust of wind pushes
  the ball and the ball starts to move. The ball is
  going 10m/s. The ball is travelling towards a
  playground that is 15 meters away. All of a
  sudden a boy comes up and kicks the ball toward
  the playground and the ball increases to a speed
  of 15 m/s in 3 seconds. The ball has a mass of
  13kg. It takes the ball 55seconds to reach the
  playground.

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The ball moves at a speed of 10 m/s due to wind.
All and all it took the ball 55 sec to reach the
playground.
Speed increased to 15 m/s in 3 sec. due to the
force exerted
Playground
15 Meters
Mass 13kg
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Acceleration

• The calculation for Acceleration final velocity-
  original velocity/ time. The ball started off at
  10 m/s and then increased to 15 m/s in 3 sec, so
  we would subtract 15 m/s the final velocity minus
  10 m/s the original velocity then dividing that
  by 3 sec, the time. So that would give us
  1.666666666666666667 m/s/s.
• Acceleration15 m/s 10 m/s / 3 sec

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Average Speed

• The calculation for average speed is distance/
  time. The average speed for the soccer ball was
  0.2727272727272 m/s, Because the ball was 15
  meters from the playground and it took the ball
  55 second to reach the playground.
• 
  average speed 15m/ 55sec 0.2727272727272 m/s.

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Force

• The force exerted by the wind is Force...
  Forcemass x acceleration so force 13mg x
  1.666666666666666667 m/s/s because 13 mg is the
  mass and1.666666666666666667 m/s/s is the
  acceleration, making 21.6666666666667 the
  force...
• Force 13mg x 1.666666666666666667 m/s/s
• Force was also exerted when the boy kicked the
  ball because of the boys mass of his leg and the
  acceleration it was moving.

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Momentum

• The formula for momentum is, momentum mass x
  velocity. The mass of the soccer ball is 13kg and
  the velocity of the soccer ball is 15 m/s. So we
  would multiply 13kg the mass by 15 m/s the
  velocity giving us 195 m/s/kg
• Momentum 13kg x 15 m/s

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Weight

• The formula for weight is weight mass x gravity.
  We already know the mass of the soccer ball is
  13kg and for gravity it would be 9/m/s/s. So we
  would multiply those giving us 117 kg/ m/s/s.
• Weight 13kg x 9/m/s/s

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Formulas

• Average speed/ average velocity distance/time
• Acceleration final velocity- original velocity/
  time
• Momentum mass x velocity
• Force mass x acceleration
• weight mass x gravity(9/m/s/s)