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Laws of Motion

JEE Main 2024 (Online) 27th January Morning ShiftMCQEasy📈 Topic in 9% papers+4−1
Ques. 1JEE Main 2024, 27 January (Morning Shift)

A body of mass 1000 kg is moving horizontally with a velocity 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is:

  1. 6
  2. 2
  3. 3
  4. 5

Answer

(4) 5

Solution

No horizontal external force horizontal momentum is conserved (added mass has no horizontal velocity)

m1u=(m1+m2)v

1000 6=1200 v

v=5 m/s

Answer: (4)

Keep practising — Laws of Motion

Ques. 2JEE Main 2024, 27 January (Evening Shift)

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Statement I is incorrect but Statement II is correct
  2. Both Statement I and Statement II are correct
  3. Both Statement I and Statement II are incorrect
  4. Statement I is correct but Statement II is incorrect

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