- #1
vkash
- 318
- 1
Hello guys.
first question.
you must have done cycle ride. It's our common experience that when air pressure inside tires reduced it becomes harder to ride. But as usual my question is why it is so why we need to apply more force(more likely torque ).??
As it is written in highlighted letters in books that friction is dependent on normal reaction of forces not on surface area(surface area of tires increase if air pressure decrease). so why it(friction) is changing with surface area change.
second.
It is also on cycle.
friction on back tire of cycle is in forward direction and on the forward tire in is backward. What if there is one tire cycle(one wheel with pandels on it) as shown in circus. I think it will be easier to ride that cycle if continuous force force is applied by rider. what you think. Will it have greater acceleration than excepted value.since friction will in forward direction.
---------
vikash chandola
first question.
you must have done cycle ride. It's our common experience that when air pressure inside tires reduced it becomes harder to ride. But as usual my question is why it is so why we need to apply more force(more likely torque ).??
As it is written in highlighted letters in books that friction is dependent on normal reaction of forces not on surface area(surface area of tires increase if air pressure decrease). so why it(friction) is changing with surface area change.
second.
It is also on cycle.
friction on back tire of cycle is in forward direction and on the forward tire in is backward. What if there is one tire cycle(one wheel with pandels on it) as shown in circus. I think it will be easier to ride that cycle if continuous force force is applied by rider. what you think. Will it have greater acceleration than excepted value.since friction will in forward direction.
---------
vikash chandola