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hit the brokes
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∙ 11y ago
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To roll down a hill on a bike without pedding?
coast
What are the forces on a car?
forward velocity, provided by the engine turning the wheels air resistance, slowing the car down due to it colliding with air molecules friction, slowed by the friction of the tyres with the road any other forces are not constant during motion of the car ( e.g gravity up or down a hill)
What is to roll down a hill on a bike without peddling?
free riding
What has gravitational energy?
a bike coming down hill has graventatinal energy.
What energy transformations occur in a bike going up and down a hill?
My mom!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Who was the 2007 down hill mountain bike champion?
Sam Hill
Why are bike brakes hot after slowing a bike at the bottom of a steep hill?
That is because of Friction. It is called heat friction and when you slow down after the brakes rub so hard against each other, it generates a lot of heat. also, you can check Wikipedia for more about heat friction.
How do you get faster on a bike when you have stopped peddling?
Cycle down a hill.
To roll down a hill on a bike without pedding?
coast
How does brakes and steering of a bicycle help with speed?
When going down a hill, you will pick up much more speed than if on flat roads. If you don't have brakes, you have very little chance of slowing down if something/someone goes infront of your path. The handlebars of a bike don't really affect the speed of the bike, that is more to do with navigation.
What are the forces on a car?
forward velocity, provided by the engine turning the wheels air resistance, slowing the car down due to it colliding with air molecules friction, slowed by the friction of the tyres with the road any other forces are not constant during motion of the car ( e.g gravity up or down a hill)
What has gravitational energy?
a bike coming down hill has graventatinal energy.
What is to roll down a hill on a bike without peddling?
free riding
Why do river flow so slowly?
at the bottom of a hill the ground becomes flatter slowing the river down.
Suppose Sharon rides her bike at a speed of 10 ms as she rides up a hill her speed decreases to 5 ms is her acceleration positive or negative?
I would say positive, as she starts the incline of the hill, she has to pedel harder and harder, whilst doing this she would be slowing down, so yeah, positive
What energy transformations occur in a bike going up and down a hill?
My mom!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Why have suspension on a down hill bike?
It makes the bike move smoother over uneven ground, which makes it more controllable.
