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Q. 44

Expert-verified
Found in: Page 289

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

# Air-track gliders with masses are lined up and held in place with lightweight springs compressed between them. All three are released at once. The glider flies off to the right while the glider goes left. Their position-versus-time graphs, as measured by motion detectors, are shown in FIGURE P11.44. What are the direction (right or left) and speed of the 400 g glider that was in the middle?

The velocity of glider is

See the step by step solution

## Step 1. Given information

The plot of position v/s time includes the expression for different gliders.

## Step 2. Predicting the velocity

In the plot of position v/s time the slope gives the value of velocity,

Hence the velocity of glider 1 with mass is and that of glider 2 is

## Step 3. Applying the conservation principle

On the application of law of conservation of momentum we have,