# Solving Physics Problem 23: Velocity Ratio for Students on Roller Skates

• Iceclover
In summary, the Velocity Ratio for Students on Roller Skates is a measurement of the relationship between their speed and the force of their push-off. It is calculated by dividing their speed by the force of their push-off. This ratio can be affected by various factors such as the surface of the roller rink, the weight and strength of the students, and their push-off force. Understanding the Velocity Ratio is important in physics as it helps us understand the relationship between force, speed, and distance, and allows for predictions and calculations regarding an object's motion. Students can use the Velocity Ratio to improve their performance on roller skates by adjusting their push-off force and technique, and comparing their performance to others.
Iceclover

## Homework Statement

Two students on roller skates stand face-to-face the push each other away. One student has a mass of 90kg the other 60kg. Find the ratio of their velocities just after their hands lose contact. Which student has the greater speed

Hint-Does conservation of linear momentum tell you something? :)

HINT: Conservation of momentum.

Edit: Damn it too slow!

huh? i don't get it

You don't know what the linear momentum is?

PS- Sorry, Hootenanny .

## 1. What is the Velocity Ratio for Students on Roller Skates?

The Velocity Ratio for Students on Roller Skates is a measurement of the relationship between the speed of the students on roller skates and the speed at which they are propelled by the force of their push-off.

## 2. How is the Velocity Ratio calculated?

The Velocity Ratio is calculated by dividing the speed of the students on roller skates by the speed at which they are propelled by the force of their push-off.

## 3. What factors affect the Velocity Ratio for Students on Roller Skates?

The Velocity Ratio for Students on Roller Skates can be affected by several factors, including the surface of the roller rink, the weight and strength of the students, and the force of the push-off.

## 4. Why is understanding the Velocity Ratio important in physics?

The Velocity Ratio is an important concept in physics because it helps us understand the relationship between force, speed, and distance. It also allows us to make predictions and calculations about the motion of objects.

## 5. How can students use the Velocity Ratio to improve their performance on roller skates?

By understanding the Velocity Ratio, students can adjust their push-off force and technique to improve their speed and performance on roller skates. They can also use the Velocity Ratio to compare their performance to others and identify areas for improvement.

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