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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A 75.0-kg ice skater moving at 10.0 m/s crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 5.00 m/s. Suppose the average force a skater can experience without breaking a bone is 4 500 N. If the impact time is 0.100 s, does a bone break?

To determine
The possibility of breaking a bone.

Explanation

Given info:

The mass is 75.0kg .

The initial speed is 10.0m/s .

The final speed is 5.00m/s .

The change in time is 0.100s .

Explanation:

The Formula to calculate the force acting on the skater is,

|Fav|=ΔpΔt=m|Δv|Δt=m|vfvi|Δt

  • Fav is the force
  • Δp is the change in momentum
  • m is the mass
  • Δt is the change in time
  • vf is the final velocity
  • vi is the initial velocity

Substitute 75

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