Physics-
General
Easy
Question
Two boxes of same material start moving on a surface, one with a velocity of 
and another with a velocity v. If the ratio of stopping times for the two boxes is 1:3, then the value of v is..
- 3.3
- 20
- 30
- 50
The correct answer is: 30
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The block in the above question is maintained at the position by external means and the level of liquid is lowered. The height h2 when this external force reduces to zero is...
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