The slide to the right shows: Accelerating-net positive impulse Positive force is forwards and negative force is backwards Momentum Impulse Free Ind -200 400 Horizontal Impulses in Running Propelling impulse increases horizontal momentum (i.e. velocity) - impulse & momentum in same direction. A Constant Speed - net zero impulse Braking impulse reduces horizontal momentum (i.e. velocity) - impulse & momentum in opposite directions. Momentum Momentum Impulse 200 400 -400 400 1000 Opeople change speed by manipulating the impulse in the horizontal GRF O impulse and momentum are in the same direction O momentum changes impulse horizontal GRFs are large Decelerating-net negative impulse
The slide to the right shows: Accelerating-net positive impulse Positive force is forwards and negative force is backwards Momentum Impulse Free Ind -200 400 Horizontal Impulses in Running Propelling impulse increases horizontal momentum (i.e. velocity) - impulse & momentum in same direction. A Constant Speed - net zero impulse Braking impulse reduces horizontal momentum (i.e. velocity) - impulse & momentum in opposite directions. Momentum Momentum Impulse 200 400 -400 400 1000 Opeople change speed by manipulating the impulse in the horizontal GRF O impulse and momentum are in the same direction O momentum changes impulse horizontal GRFs are large Decelerating-net negative impulse
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