When rollerblading,why is a fall less harmful on a wooden floor than on a concrete floor that has less give?Explain in terms of impulse and momentum.
When rollerblading, a fall is less harmful on a wooden floor than on a concrete floor that has less give because the concrete surface is much harder than the wooden floor, so when the roller-blader falls, he falls on a larger force in a shorter amount of time. The amount of damage depends on the size of the force, so a floor that slows you down more gradually causes less damage since it applies less force.
go on google and type in "impulse and momentum upon impact explanation" and click on the link 4th from the top
p.s. i know its probably already obvious but i think it's just the density imbalances
When rollerblading, falling on a wooden floor is generally considered less harmful than falling on a concrete floor. This is because of the difference in the floors' ability to absorb and distribute the impact. We can explain this difference by looking at the concepts of impulse and momentum.
Impulse is the change in momentum of an object, and it is equal to the force applied to the object multiplied by the time over which the force is applied.
Momentum is the product of an object's mass and its velocity and can be thought of as the object's "motion content." The momentum of an object is conserved unless acted upon by external forces, such as during a collision or a fall.
When a rollerblader falls, their momentum is rapidly changing due to the external force of the impact.
On a wooden floor, the surface has more give and flexibility compared to a concrete floor, which means it can absorb some of the impact force over a longer period of time. As a result, the impulse experienced by the rollerblader is spread out over a larger time interval. This longer time interval reduces the force acting on the body and decreases the rate at which the momentum changes.
On the other hand, a concrete floor has less give and is much harder, meaning it cannot absorb and distribute the impact force as effectively as a wooden floor. As a result, the impulse experienced by the rollerblader is concentrated over a shorter time interval. This results in a larger force acting on the body and a higher rate of change in momentum.
In summary, when a rollerblader falls, a wooden floor's ability to absorb and distribute the impact over a longer time interval reduces the force acting on the body and decreases the rate at which the momentum changes. This makes a fall on a wooden floor less harmful compared to a concrete floor that has less give and distributes the impact over a shorter time interval, resulting in a higher force and a faster rate of change in momentum.
When rollerblading, falling on a wooden floor can be less harmful compared to falling on a concrete floor due to differences in impulse and momentum.
Impulse is the product of force and the time interval over which the force acts. When you fall while rollerblading, the force exerted on your body is largely dependent on the surface you fall on.
Momentum is the product of an object's mass and velocity. When you fall, your body has a certain amount of momentum, which is determined by your mass and your speed.
Now, let's analyze the difference between falling on a wooden floor and a concrete floor:
1. Wooden Floor: A wooden floor has some give or flexibility, meaning it has the ability to absorb and distribute the force exerted on it. When you fall on a wooden floor, the surface deforms slightly, providing a longer time interval for the force to act on your body. This longer time interval decreases the impulse experienced by your body, reducing the force applied and potentially minimizing the risk of injury.
2. Concrete Floor: On the other hand, a concrete floor is rigid and has very little or no give, meaning it cannot effectively absorb or distribute the force. When you fall on a concrete floor, the surface does not deform significantly, resulting in a shorter time interval for the force to act on your body. This shorter time interval increases the impulse experienced by your body, leading to a higher force and potentially causing more harm.
In summary, falling on a wooden floor is less harmful than falling on a concrete floor due to the floor's ability to absorb and distribute the force, resulting in a longer time interval for the force to act on your body and decreasing the impulse. Conversely, falling on a concrete floor provides less give, resulting in a shorter time interval for the force to act on your body and increasing the impulse.