real life application
which object gets more resistance from friction
One on a smooth polished marble floor
One on a rough pebbly beach
one on a rough pebbly beach
what is rolling friction
when one body rolls over the surface of another body the resistance to its motion is known as rolling friction
why is it more difficult to walk on ice than to walk on a paved sidewalk
which type of friction is at play
because the static friction between your shoes and the ice is much lower than the static friction between your shoes and the sidewalk
what is fluid friction
the force of friction exerted by fluids when an object moves through them
Why do we add wheels onto suitcases
because rolling friction is smaller than sliding friction
what is streamlined
the state where the body is longer horizontally than vertically
why is it more difficult to move a carpet when someone is sitting on it than when no one is sitting on it
because friction is stronger the harder the objects press on each other
another name for fluid friction
drag
Why do cars have treads on rainy days
because the treads increase the friction between the tyres and the road allowing for better grip on a rainy day
why do ball bearings reduce friction
they convert sliding friction into rolling friction