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Rotational Motion question

2017 · 8 Apr · Shift 1 · Q55
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  5. /2017 · 8 Apr · Shift 1 · Q55

Rotational Motion question

2017 · 8 Apr · Shift 1 · Q55

JEE MainPhysicsRotational MotionMCQ+4 / −1
A uniform disc of radius R and mass M is free to rotate only about its axis. A string is wrapped over its rim and a body of mass m is tied to the free end of the string as shown in the figure. The body is released from rest. Then the acceleration of the body is : JEE Main 2017 (Online) 8th April Morning Slot Physics - Rotational Motion Question 197 English
  1. A
    2  mg2 m+M{{2\,\,mg} \over {2\,m + M}}2m+M2mg​
  2. B
    2  Mg2 m+M{{2\,\,Mg} \over {2\,m + M}}2m+M2Mg​
  3. C
    2  mg2 M+m{{2\,\,mg} \over {2\,M + m}}2M+m2mg​
  4. D
    2  Mg2 M+M{{2\,\,Mg} \over {2\,M + M}}2M+M2Mg​
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