0
Why does a person riding a bike down a steep hill accelerate faster than on a gradual hill?
Wiki User
∙ 13y ago
The acceleration of the bike will depend on the general shape of the hill(ie. it's slope along the line of movement). If you don't take any friction into account, yes, the speed of the bike at the bottom will be greater if it goes from the bigger(ie. higher) hill.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoIn both cases, the component of weight downhill is the resultant force on the person-bike system. By resolution of vectors, it can be shown that the component of weight downhill is given by:
Component of weight downhill = mgsinA
where
m is the mass of the system
g is the acceleration of free fall
A is the acute angle between the slope of the hill and the horizontal.
A steep hill will have a larger value of A. Thus, the component of weight downhill will be greater (since sinA is greater). From Newton's second law, the acceleration will be greater.
Hence, a person riding a bike down a steep hill accelerate faster than on a gradual hill.
Add your answer:
Earn +20 pts
When riding in an elevator why does a person appear to lose weight when accelerating downward?
Weight is felt by the body resisting the pull (acceleration) of gravity. Less acceleration means less pull thus less weight. The rate at which you are accelerating downward subtracts from the pull of gravity, thus your weight is less. If you fall, say from a cliff or tall building you accelerate downward at exactly the acceleration of gravity so you're completely weightless.
Can a body have forces applied on it but will not accelerate justify your answer?
Newton's second law states that when forces an unbalanced force is applied to an object it will accelerate in the formula: Fnet=mawhere F is the sum of the forces mass and a is the acceleration.A body can have no acceleration if the sum of all the forces is 0. So therefore forces can be applied, but they must have an equal and opposite force canceling them out. A=F/M so when F is 0, A is 0.So if there is constant velocity on an object it will not accelerate!---------Example:If you keep riding your bike in a certain direction at 5 m/s constantly, there is constant velocity present and no acceleration :D
If you are riding on a train that speeds past another train moving in the same direction on an adjacent track it appears that the other train is moving backward. why?
because your going forward at a faster speed its hard to explain
Can chemical energy transform into mechanical energy after riding a bike?
Not after riding a bike, but rather during riding a bike. Your muscles convert chemical energy (a form of potential energy) into mechanical energy to do work.
What are the disadvantages of plane mirror used as a driving mirror?
a plane mirror is so much bigger than a car mirror
If a person is riding a bike and has not changed either speed or direction is that person accelerating?
No. they must be increasing speed to accelerate.
Does riding a motorcycle help to end your period faster?
Riding a motorcycle doesn't help to end your period faster.
Is riding a longboard the same as riding a skateboard?
not wery different but yes it is different.much faster and easier to turn.
How has downhill bike riding changed over time?
It just keeps getting faster and faster.
Is a penny board faster than riding the bus?
the answer is yes
What are the conflicts in Little Red Riding Hood person vs person person vs fate?
Person vs. Person - Little Red Riding Hood vs. The Wolf Person vs. Fate - Little Red Riding Hood vs. Anything that happens to her
Who Invented The First Horse Riding Helmet?
Dr macanara Dr macanara Dr macanara Dr macanara Dr macanara Dr macanara Dr macanara Dr macanara Dr macanara
Is riding a dirt bike physical exercise?
No, unless you are out of gas and have to push the bike it is just like riding in a car. Even though you may be using your arms to turn and your feet to accelerate, they do not amount to enough to call it exercise.
Is a xr 100 faster then a crf 100?
it depends on who is riding . but the bikes are the same hp.
Is it ride in a truck or ride on a truck?
A person would ride in or inside a truck, not on the truck. Riding on the truck means a person could be riding anywhere on the truck, and a person usually rides inside the truck. Riding inside the truck is more specific.
Who thought of riding elephants?
The name of the person who first thought of riding on elephants is lost to history.
How is a person positioned riding a luge?
On your back.
