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NEET 2013
Exam
NEET
Year
2013
Subject
Physics
Chapter
Laws of Motion

NEET 2013 · Physics · Laws of Motion

Three blocks with masses m, 2 m and 3 m are connected by strings,...

Three blocks with masses m,2mm, 2 m and 3m3 m are connected by strings, as shown in the figure. After an upward force FF is applied on block mm, the masses move upward at constant speed vv. What is the net force on the block of mass 2m?2 m ? Three blocks with masses m, 2 m and 3 m are connected by strings, as shown in the figure. After an upward force F is

Options

  1. AZero
  2. B2mg2 \mathrm{mg}
  3. C3mg3 \mathrm{mg}
  4. D6mg6 \mathrm{mg}

Correct answer

A. Zero

Step-by-step solution

Since all the blocks are moving with constant velocity, then the net force on the all blacks will be zero.
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