Kinesiology 2241A/B Lecture Notes - Lecture 8: Tumble Turn, Friction, Place Kick
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#1 anything with mass doesn(cid:495)t want to be accelerated: #2 if you insist on accelerating something you have to apply a, wants to stay put with 0 velocity or remain with its constant velocity force. Acceleration determines how much force you need to apply. Force has a magnitude, direction, point of application and line of action. So does acceleration force reaction force (light blue) the body applying equal force back on you. #3- if a force is applied to an object, that object pushes back with the same. Ronaldo applies action force on ball, accelerating ball upwards. 3rd law if you applied a force and applied it to the body, price to pay for it is. Action comes from athlete, reaction comes from object. This is pair of forces are the action force and the retraction force: they are equal in magnitude and opposite in direction. Any activity you do involving you and the environment have action and reaction forces.