What is the reaction of the ground on a ball rebounding from a 5m drop?

• tongtong1993
In summary, repulsive force is a type of force that causes objects to move away from each other due to the interaction between electrically charged particles. It is the opposite of attractive force and can be seen in examples such as the force between two like-charged particles. The effects of repulsive force vary depending on the strength and mass of the objects involved, and it plays a crucial role in understanding phenomena in science and everyday life, as well as being essential for various technologies.
tongtong1993

Homework Statement

A ball of 2kg drops from rest to ground from a height 5m and rebounds to the same height.
If the time of duration of the impact between the ball and the ground is 0.2s
what is the total reaction of the ground on the ball

The Attempt at a Solution

mgh=0.5mv^2
2(10)(5)=1.5(2)v^2
v=10
F=ma
F=2(10/0.2)
F=100

What is the change of velocity of the ball during the impact?

ehild

20ms^-1??

Yes, this is the magnitude of the velocity change during 0.2 s.

ehild

What is repulsive force?

Repulsive force is a type of force that causes objects to move away from each other. It is the opposite of attractive force, which causes objects to move towards each other.

What causes repulsive force?

Repulsive force is caused by the interaction between electrically charged particles. Like charges repel each other, creating a force that pushes them away.

What are some examples of repulsive force?

Examples of repulsive force include the force between two positively charged particles, like protons, and the force between two negatively charged particles, like electrons.

What are the effects of repulsive force?

The effects of repulsive force depend on the strength of the force and the mass of the objects involved. In some cases, it can cause objects to repel each other with great force, while in other cases, the force may be too weak to have a noticeable effect.

How is repulsive force important in science and everyday life?

Repulsive force is important in science because it helps explain many phenomena, such as the behavior of atoms and molecules. In everyday life, it is responsible for keeping objects from passing through each other and is essential for many technologies, such as magnets and electric motors.

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