Physics
Grade-8
Easy

Question

What can you say about the numerical data from the figure, in connection with the conservation of linear momentum?

  1. It is conserved    
  2. Before collision > after collision    
  3. After collision > before collision    
  4. Cannot say    

hintHint:

  • The formula for the law of conservation of momentum is: m 1 u 1 + m 2 u 2 = m 1 v 1 + m 2 v 2.

The correct answer is: It is conserved


    • The formula for the law of conservation of momentum is: m 1 u 1 + m 2 u 2 = m 1 v 1 + m 2 v 2.
    • Before collision = 100 cross times 20 space plus 300 cross times 0=20000
    • After collision =100 cross times 5 plus 300 cross times 5 equals 20000
    • So it is conserved 

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