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Biomechanics Exam 2 Knowledge

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Biomechanics Exam 2 Knowledge

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Biomechanics Exam 2 Knowledge




What does Newtons Law of Acceleration state - Answer-2nd Law



F=ma



acceleration is directly proportional to force and its in the same direction as the force and is inversely
proportional to mass



What is the differences between force, mass, and weight - Answer-Force- vector



Mass- scalar



Weight- mass x gravity



How is linear inertia defined - Answer-it is the ratio of force applied to that object vs that objects
acceleration



Kinetics vs Kinematics - Answer-Kinetics- study of forces that cause motion (torque, gravity, friction)

, Kinematics- study of describing movement (displacement, time, velocity)



What are the four properties of a force - Answer-magnitude



direction



point of application



line of action



What is the physical unit for force - Answer-Newton



What does Newtons 1st Law state - Answer-law of inertia



an object will remain at rest or in uniform position until acted on by an external force



What does Newtons 2nd Law state - Answer-law of acceleration



the change of motion is proportional to the force impressed and is made in the direction of the straight
line in which that force is impressed



F=ma



What does Newtons 3rd Law state - Answer-law of action-reaction

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