Why you have to keep pedaling a bike to keep moving?
As an alternative, a “just keep pedaling” culture allows for continued movement toward a destination or goal. Mistakes may happen, but forward momentum provides a better opportunity to quickly recover to continue moving forward.
Why is it that even if you stop Pedalling the bicycle the bike still continued to move relate your answer to the law of inertia?
When pedaling a bicycle, if you stop pedaling, then the bike continues going until friction or gravity slows it down. … If a ball is on a slanted surface and you let go, gravity will make it roll down the slope. It has inertia, and if there is a level area at the bottom of the slope, it will continue moving.
Why do you push harder on the pedals of a bicycle when first?
Why do you push harder on the pedals of a bicycle when first starting out than when moving at a constant speed? … When moving at a constant speed, net force equals zero. When first starting to move, it is necessary to overcome static friction which is larger than kinetic friction.
What force is responsible for stopping a bike?
Static friction is also the force that is most effective in stopping the bicycle. In a normal stop—one that does not involve any skidding of the tires—it is the force of static friction between the ground and the tires that causes the deceleration of the bicycle.
Is it possible for a box to be moving if the net force on it is zero?
Acceleration is the change of velocity per unit time, so if there is no force, all we know is that the acceleration is zero. Therefore, the velocity is not changing. … So, yes, the object can be moving when there is no force applied to it.
Why might your foot hurt if you kick a heavy desk or wall?
Why might your foot hurt if you kick a heavy disk or a wall? By Newton’s 3rd law, the desk or wall exerts a force on your foot equal in magnitude to the force with which you hit the desk or wall. If you hit the desk or wall with a large force, then there will be a large force on your foot, causing pain.
Why does a child in wagon seem to fall backward when you give the wagon a sharp pull forward?
why does a child in a wagon seem to fall backward when you give the wagon a sharp pull forward? … The force is applied to the wagon, not the child, and so the wagon accelerates out from under the child, making it look like the child falls backwards relative to the wagon.
Why would it be really difficult to pedal a 10000 pound bicycle?
Why would it be more difficult to start pedaling a bicycle if you put a 10,000 pound weight on it? Because the Earth’s gravity pulls more strongly on objects with larger masses. Because all of the forces are balanced and no motion will occur.
How much force do you need to pedal a bike?
Assuming you have a bike with low friction (thin tires, well inflated) on a flat surface, then 200 – 250 W of net power will be enough to maintain a speed of 20 mph.
Why is it easier to stop a bicycle than a car?
Since the total weight of the bike is far smaller than of the car’s, the amount of energy that has to be dissipated is smaller. That’s why it can be dissipated more quickly and the bike can stop faster.