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Motion in A Straight Line question

2011 · Shift 0 · Q78
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  5. /2011 · Shift 0 · Q78

Motion in A Straight Line question

2011 · Shift 0 · Q78

JEE MainPhysicsMotion in A Straight LineMCQ+4 / −1
An object, moving with a speed of 6.25 m/s, is decelerated at a rate given by : dvdt=−2.5v{{dv} \over {dt}} = - 2.5\sqrt vdtdv​=−2.5v​ where v is the instantaneous speed. The time taken by the object, to come to rest, would be :
  1. A
    2 s
  2. B
    4 s
  3. C
    8 s
  4. D
    1 s
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