Question

The figure shows the position-time graph of a body of mass 0.04 kg. Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse? 

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Updated on : 2022-09-05
Solution
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The graph could be representing a ball rebounding between two walls separated by 2 cm with a constant velocity in free space. After receiving the impulse ball changes its direction. Hence time between two impulses is 2 seconds. 

Initial momentum, 
 
Final momentum, 
 
Change in momentum = 0.08 \times 10^{-2} kgm/s $$

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