Action Reaction IN REAL LIFE!!!!

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For every force there is an equal and opposite force

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Presentation transcript:

Action Reaction IN REAL LIFE!!!!

Action: Baseball bat exerts a force on the baseball Baseball exerts a force back on the baseball bat Reaction:

Air exerts a force outward on balloon Balloon exerts a force on the inside air Action: Reaction:

Action: Reaction: Bowling ball exerts a force on the pin Pin exerts an equal force ball on the bowling ball

Equal Forces does NOT mean equal accelerations!!! When you jump…. Action: You exert a force down on the Earth Reaction: The Earth exerts a force to push you up Action Force = Reaction Force Mass x acceleration Mass x acceleration

An unfortunate bug splatters against the windshield of a moving car. Which is greater: The acceleration of the bug The acceleration of the car Which is greater: The force exerted by the car on the bug The force exerted by the bug on the car BOTH ARE EQUAL!!! If forces are equal, the larger mass will have a smaller acceleration than the smaller mass Ex – tennis ball goes faster when pushed than a bowling ball Why??? Equal but opposite forces

A) Volkswagon B) Mack Truck C) Both the Same A Mack Truck and a Volkswagon traveling at the same speed have a head-on collision. The vehicle to undergo the greater change in velocity will be the…. A) Volkswagon B) Mack Truck C) Both the Same

Where are the Forces?! John Deere Stretch Armstrong Dumbo Weight Normal Force from ground Friction Force  Tension  Applied force from motor  Weight Normal Force from ground Friction Force  Tension  Applied Force  Tension (x2) Weight

Would changing the weight of the shoe change the coefficient of friction?