×
×

# Solved: Mixed-pair ice skaters performing in a show are

ISBN: 9781938168000 42

## Solution for problem 17CQ Chapter 8

College Physics | 1st Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

College Physics | 1st Edition

4 5 1 274 Reviews
10
4
Problem 17CQ

Mixed-pair ice skaters performing in a show are standing motionless at arms length just before starting a routine. They reach out, clasp hands, and pull themselves together by only using their arms. Assuming there is no friction between the blades of their skates and the ice, what is their velocity after their bodies meet?

Step-by-Step Solution:

Solution to 17CQ

Step 1 of 3</p>

We need to find the velocity of the mixed pair of ice skaters after they clasp their hands together and pull themselves using hands. It is given that there is no friction between the blades and the ice.

Let us assume that the collision is inelastic where the kinetic energies before and after collision is not conserved.

The mass of first ice skater

The mass of second ice skater

The initial velocity of first ice skater

The initial velocity of second ice skater

Final velocity of first ice skater

Final velocity of second ice skater

Momentum of a moving body is given as

Where,

is the mass of the object

is the velocity.

Step 2 of 3</p>

The ice skaters are at rest before they join hands. Thus their initial momentum is as follows.

Step 3 of 3

#### Related chapters

Unlock Textbook Solution