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STD 11 - 6. system of particles and rotational motion — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 6. system of particles and rotational motion4 Marks
MCQ
A solid sphere of radius $R$ is placed on smooth horizontal surface. A horizontal force $F$ is applied at height $h$ from the lowest point. For the maximum acceleration of centre of mass, which is correct?
  • A
    $h=R$
  • ✓
    no relation between $h$ and $R$
  • C
    $h=0$
  • D
    $h=2 R$
✓

Answer

Correct option: B.
no relation between $h$ and $R$
b
Surface is smooth so there is no friction at the contact surface. then acceleration is dependent only on force applied

$a =\frac{ F }{ m }$

so there is no role of height to find out the acceleration

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